Bavitha Bhavitha 17.02.2011 EM Physics

7/29/2019 Bavitha Bhavitha 17.02.2011 EM Physics

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Important Questions

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Quick Review

Points to remembe


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PHYSICS BIT BANK / IMPORTANT QUESTIONS UNITS - 1, 2, 3

Heliocentric theory was proposed by..

MEASUREMENT OF LENGTH

1. Screw gauge works on the principle of________. (June 04, March 04)

2. The scale marked on the index of a screwgauge is called ________ (Oct, 99)

3. Pitch of the Screw P = ____/No of revolu-tions made.

4. Least count of an ordinary scale is________.

5. For a screw gauge Le = Pitch of theScrew/________.

MEASUREMENT OF LENGTH

Important Questions

5 Marks

1. Draw a neat diagram of screw gauge andlabel its parts? (June 10, 09, 04, Mar 08. 07,

05, 01)2. Draw the following diagrams showing zero

errors of a screw gauge (March 10, 07)a) No zero error b) positive zero error.c) Negative zero error.

4 Marks

1. How do you determine the diameter of awire using a screw gauge? (June 06, March09, 03)

2. What are positive and negative zero errorsof a screw gauge? How are they deter-mined? (October, 99)

2 Marks

1. What are positive and negative zero errorsof a screw gauge? How are they deter-mined? (March 00)

2. What is the principle of a screw gauge?(June 02, March 00)

3. What is the pitch of a screw?4. What is the least count of a screw gauge?

(March 01)1 Mark

1. What is the least count of a screw gauge?(june 02)

2. What is the principle of a screw gauge?

OUR UNIVERSE

1. According to Kepler concept the orbit of aplanet around the sun is ________. (March05,10)

2. The law of gravitation holds ________.(March 05)

3. The weight of 400grams stone is ________.(March 2000, June 08, 10, April 08)

4. Kepler's law support ________. (March 99)5. The value of acceleration due to gravity 'g'

is nearly ________ (Oct 1999)6. Heliocentric theory was proposed by

________. (June 2000)7. The value of 'G' is ________.(June 04)8. Units of 'G' are ________. (March 08,

March 01)9. Numerical value of "G" is experimentally

found to be ________. (March 09)10. Ptolemaic theory is also known as

________. (March 09, 07)

11. Units of acceleration due to gravity are________. (March 01)

12. Acceleration due to gravity increases with________ and decreases with ________.(March 03)

13. Acceleration due to gravity at poles is________ and at equator it is ________.(Oct 99)

14. Mass of the body is ________ anywhere inthe universe. (Oct 99)

15. The formula for gravitational force ofattraction between two bodies is given by F= ________. (March 99)

16. Sensitive instrument used to find smallchanges in the value of 'g' is ________.(June 05, 03, 01, March 04)

17. Acceleration due to gravity 'g' is maximumat ________. (June 03, March 03, 02)

18. Numerical value of universal gravitationalconstant is ________. (June 07)

19. The uniform acceleration produced in afreely falling body due to gravitational pullof the earth is called ________. (June 08)

20. Relation between 'g', G, M and r is________.

21. The weight of a body on the moon is________of its weight on earth.

22. Scientist who conducted experiment fromthe leaning tower of Pisa was ________.

23. Acceleration of moon in the direction ofearth is ________ m/g2.

24. Gravitational force of attraction on 10kg of

an object is ________.

OUR UNIVERSE

Important Questions

4 Marks

1. Derive the relation between accelerationdue to gravity and gravitational constant(or) what is the relationship between 'g' and'G'?

2. Write universal law of gravitation andexplain in detail? (March 03, 00, June 01)

2 Marks

1. Write Newton's law of universal gravita-tion. Calculate the gravitational force on anobject of mass 10kg? (March 03, 00)

2. Differentiate between Mass and Weight of abody? (June 2006, 04, 03)

3. If a stone is thrown vertically up in air witha velocity of 20 m/s, how much height thatstone travels?

4. A ball is thrown up and attains a maximumheight of 80m. Find its initial speed?(March 2009, June 2006, 04)

5. What is the velocity of stone when it reach-es earth from a height of 20m? (June 05)

6. A body is projected vertically upwards withan initial velocity of 40m/s. Find the maxi-mum height reached by the body? (March2002)

1 Mark

1. What is Heliocentric theory? (March 05)2. What is Geocentric theory?3. What is acceleration due to gravity? (March

06)4. Define the weight of a body? (March 07)5. State Hooke's law? (June 07, March 04)6. Why the weight of a body is not the same at

the poles and at the equator? (March 1999)7. The weight of the body is not the same on

the surfaces of the earth at all places.Specify the reason? (June 2002)

8. What is acceleration due to gravity of earth?9. Why does the value of a 'g' decreases as we

go deep inside a mine? (March 08)

10. Express the relationship between 'g' 11. What is gravity meter?

KINEMATICS

1. A body is projected vertically upwaa velocity of 20 m/s. The maximumreached by the body is (Take g' = ________. (June 01)

2. A body is projected vertically upwaa velocity of 10 m/s. The maximumreached by the body is ________ (Ta10m/s2). (June 02)

3. A body is projected vertically upwaa velocity of 40 m/s. The maximumreached by the body is (Take g = (March 2004, 02)

4. The maximum height reached bthrown up with an initial velocit________ (April 08, June 05, 10 Ma

5. Formula to find out maximumreached by a body thrown up is __(June 2005)

6. The time taken by a body throwreach maximum height 'h' is ca________. (June 07, March 03)

7. When a body is dropped from a hthen the velocity of the body on rthe earth is ________. (March 07)

8. Time of ascent is directly proport________. (March 10, 04, April 08,J05, 04, 00)

9. The time for which the body remain

is called as ________.(March

10. A ball is thrown up and attains a mheight of 80m. then its initial s________. (June 08)

11. When a body moves towards thacceleration to gravity is tak________. (June 07, March 06, 05)

12. When a body is projected upwaacceleration due to gravity is ta________. (March 10, 08)

13. For a body moving under the influegravity, the time of ascent is e________ (March 06)

14. Time of descent (td) = ________.15. Time of flight T = ________.

16. The final velocity of a body throwequal to ________.

17. At a constant point velocity of asceobject and velocity of descent of an o________.

ANSWERS

1) Screw in a nut; 2) Pitch scale; 3) Distancetravelled by the tip of the screw; 4) 1mm; 5)Number of head scale divisions.

ANSWERS

1) Elliptical; 2) Everywhere in the universe; 3)3.9N; 4) Heliocentric Theory; 5) 980 cms2

(or) 9.8ms2; 6) Copernicus; 7) 6.67 1011

Nm2 kg2; 8) Nm2 kg2; 9) 6.67 1011; 10)Geocentric theory; 11) m/s2; 12) Local condi-tions, height or depth; 13) Maximum,

Minimum; 14) Constant; 15) ; 16)

gravity meter; 17) Poles; 18) 6.67 1011 Nm2

kg2; 19) Acceleration due to gravity;

20) ; 21) 1/6th; 22) Galileo; 23)

0.0027 meter/sec2; 24) 98N

2

GMg

r=

1 2

2

m mG

r

ANSWERS

1) 20m; 2) 5m; 3) 80m; 4) U2/2g; 5U2/2g; 6) Time of ascent; 7) ; 8)velocity; 9) Time of flight; 10) 40 mPositive; 12) Negative; 13) Time of des

14) ; 15) 2u/g; 16) Zero; 17) equ2h

g

2gh

Physical Science Bit Bank

Prepared by:

Y. Ravi Kumar

Senior Teacher


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PHYSICS BIT BANK / IMPORTANT QUESTIONS UNITS - 4, 5, 6

Speed of light in Vacuum is...KINEMATICS

Important Questions

2 Marks

1. What is the angular velocity of earth alongit's axis? (Sep 99)

2. What is the principle of launching a satelliteinto an orbit? (March 01 June 04, 00)

3. Distinguish between a rotatory motion and acircular motion? (March 2006, March 2010)

4. What is a centrifuge? How does it work?(June 2006, March 09, 04, 1999 April 08)

5. Explain the working of a laundry drier?(June 2007, 2005, 2003)

6. What is the necessity of banking roads?(June 04)

7. What is simple harmonic motion? What are

its characteristics? (June 2010, 08)8. What is the angular velocity of earth with

respect to its rotation? (October 99)9. Give examples for oscillatory motion

observed in your day-to-day life? (June,2000)

10. Find the length of a simple pendulum whosetime period is 1.2 seconds? (March 1999)

1 Mark

1. What is time of a flight? (June 2007, March2007)

2. What is the value of orbital velocity of anartificial satellite?

3. What is the escape velocity of an artificialsatellite?

4. What is escape velocity?

5. What is the time period of a particle?6. Relationship among l, T and g?7. What happens when a simple pendulum is

kept at the centre of earth?

DYNAMICS

1. In simple Harmonic motion the accelerationof a particle is directly proportional to________. (June 2003, 02, Mar 09)

2. A car moves on a curved but level road. Thenecessary centripetal force on the car is pro-vided by ________. (Mar 09. June 2004,03)

3. A car has a mass 1200kg taken a turn on acurved road of radius 180m with a speed of6 m/s. The centripetal force acting on the

car is ________.4. The device used to separate particles of

higher mass from those of lower mass in agiven mixture is ________. (March 2001)

5. ________ force is a pull on the bodytowards the centre of the circle. (Oct 99)

6. Newton's law is valid in ________ frame ofreference (June 2003)

7. One Radian = ________.8. The relation between time period 'T' and

frequency 'f' is ________.9. Angular momentum of a particle L =

________.10. The orbital velocity of an artificial satellite

is ________.11. The period of oscillation of second's pendu-

lum is ________.12. Angle of banking is '' then Tan =

________.13. If the string of whirling stone is cut, the

stone moves in ________ direction.14. Satellite communications use ________

waves.15. ________ is associated with every wave

motion.16. Wet clothes are dried up by________.

DYNAMICS

Important Questions

4 Marks

1. How do you determine 'g' by simple pendu-lum? (March 2000)

2. Distinguish between centripetal and cen-trifugal force? (March 08, 02, June 03, 02)

3. What is angle of banking? Deduce anexpression to find it's value (or) derive theformula, the banking angle? Tan = V2/rg

(June 2001)

ELECTROMAGNETIC

SPECTRUM

1. The wavelength range of visible spectrum is________. (June 07, 05, 04, March 01)

2. 1 = ________. (Oct 1999)3. Speed of light in vacuum is ________.

(March 00, 08)4. The electromagnetic radiations used in

RADAR are ________.(April 08, June 05,March 01)

5. The electromagnetic radiations observed inradioactivity is________(March06, June01)

6. The electromagnetic waves are ________.(March 06, June 02)

7. ________ rays are used to take photographsof objects in darkness(Mar 04, 09)

8. The radiations used in physiotherapyare________ (March 07)

9. Electromagnetic radiations with shortnesswavelength are ________. (March 08)

10. The frequencies used in radio communica-tions are in the range of ________. (March99, 10)

11. RADAR means ________. (Oct 99, Mar05)

12. Type of electromagnetic radiations with10mm to 10m wave length are ________

13. Microwaves are commonly produced byelectromagnetic oscillators with ________in electric circuits. (June 01)

14. The Ozone layer protects us from ________radiations from the sun. (April 08, Mar 04,June 07)

15. Waves useful in Telemetry are ________.16. Long term exposure to ________ radiations

can lead to skin cancer.17. Radiations used in medical diagnosis are

________.18. Radio- Waves have wavelengths from

________. (March 10)

ELECTROMAGNETIC SPECTRUM

Important Questions

5 Marks

1. Draw and label the diagram showing vari-ous regions of electromagnetic spectrumand their wavelength ranges? (June 07,March 06)

2 Marks1. Draw the diagram of electromagnetic

wave? (June 05, March 01)1 Mark

1. Write the uses of hard X-rays? (June 01)2. Reason for the damage of ozone layer in

atmosphere? (June 06 March 00)3. What is Radiography? (March 03)4. What is Radio therapy?5. Uses of soft x-rays?6. Velocity of light in vacuum?7. Mention the uses of Microwaves?8. Mention the uses of Infrared rays?

SOUND

1. Velocity of sound in air is ________ (June

06, March 09 03 01, April 08)2. In resonating air column experiment with a

closed-end tube, first resonance occurswhen the length of the air column is 10cm.Second resonance occurs at ________.(March 04 Jun 10)

3. A medium transmits a sound wave throughit by virtue of its ________. (March 07)

4. Distance between a node and the next anti-node in a stationary wave is 10cm. Then thewavelength is ________. (June 05, Mar 03)

5. In a stationary wave, the point at which thedisplacement is maximum is called________. (June 08, 02, 00, Mar 02)

6. The distance between a successive nodeantinode is ________.(March 06,04, 01,

7. Distance between a node and the next anode in a stationary wave is 20cm. Thenwavelength is ________. (June 03)

8. Periodic vibrations of decreasing amplitare called ________. (March 08)

9. Distance between two successive node________. (March 10)

10. The vibrations that take place under influence of an external periodic forcecalled ________. (June 07)

11. Distance between antinode and the nantinode is ________. (Oct 99, Mar 07)

12. Particles undergo minimum displacemen________ in a stationary wave. (March

13. In a resonating air column ________ waare formed.

14. The time period of a simple pendulum________ proportional to its length.

15. The velocity of sound in vacuum________.

16. If the velocity of sound is 300m/s and quency is 10000HZ then the wavelengthsound is________.

17. If the band plays music outside, it makesvessels in the house produce sounds, reason is ________.

18. Sound waves are ________ waves.19. Distance between two particles of a w

which are on the same phase is ca________. (Oct 99)

SOUND

Important Questions

5 Marks

1. Draw figures to indicate the first and secmodes, of resonating air-column in a clo

table? (June 07, March 06)2. Draw the sketch of a Ripple tank and n

it's parts? (June 00)4 Marks

1. Distinguish between progressive and tionary waves? (March 09, 02, 01)

2. Describe a few incidents of ResonaPhenomenon observed in your day to life? (June 01, March 01, 00, 99)

3. Describe a method to determine the velty of sound in air? (June 06, 05, 4, 00)

2 Marks

1. Explain the phenomenon of resonan(March 99, 02)

ANSWERS

1) Displacement; 2) Friction between the tyresand the road; 3) 240N; 4) Centrifuge; 5) Cen-

tripetal; 6) INERTIAL; 7) 5729'; 8) T = 1/f;9) mr2; 10) 811 km/sec; 11) 2 sec; 12) V2/rg;13) Straight line (or) tangential to the circle;14) Micro waves; 15) SHM;16) Laundry drier

ANSWERS

1) 0.4m - 0.7m; 2) 108cm; 3) 3 108m/s; 4)

Radio waves(or)Microwaves; 5) -rays (Gamarays); 6)Transverse waves; 7) Infrared rays; 8)Infrared rays; 9) Infrared rays; 10) 300 kHz to300mHz; 11) Radio detection and ranging; 12)MICROWAVES; 13)High frequency;14) Ultraviolet; 15) Micro waves; 16) Ultra violet radi-ations; 17) Soft X - Rays; 18) 1m to 100km.

ANSWERS

1) ; 2) 30cm; 3) Elasticity and in

tia; 4) 40cm; 5) Antinode; 6) /4; 7) 80cm;damped vibrations; 9) /2; 10) Forced vibrtions; 11) /2; 12) Node; 13) Stationary; 1Inversely; 15) Zero; 16) 3cm; 17) Resonan18) Longitudinal; 19) Wavelength

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PHYSICS BIT BANK / IMPORTANT QUESTIONS UNITS - 7, 8

Lumen is the unit of...2. What are the differences, between 'Nodes"

and Antinodes? (June 07, March 00)3. Describe the phenomenon of resonance

observed in our daily life?4. What is the difference between resonance

and forced vibrations?5. If the distance between a node and the next

antinode of a stationary wave is 10cm.What is it's wavelength? (March 03)

6. If a resonating air column experiment witha closed end tube, the first resonance occur-s when the length of the air column is 10cm.At what length second resonance occurs?(04).

1 Mark

1. What is damped vibration? (March 07)

2. What is a resonating air-column? (March06)

3. What is resonance? (June 01,05 March2010, 08, 05, 02)

4. What is node? (June 07)5. What is antinode? (June 07)6. Draw the sketch of a stationary wave? (oct

99)7. If first resonance is noticed at a height of

10cm tell the height of second resonance ina open tube?

8. If the distance between node and the nextantinode is 10cm, find out the wavelength?

LIGHT - NATURE OF LIGHT

AND SOURCES OF LIGHT

1. Wave theory of light was proposed by________. (Mar 2003)

2. Corpuscular theory state that the velocity oflight in ________ medium is greater andthat in ________ medium.

3. For constructive superposition of waves,phase difference between the waves shouldbe equal to ________. (June 08)

4. A wave undergoes a phase change of________ on reflection. (June 08)

5. Lasers are used in the treatment of diseasesof ________. (March 2005, Oct 99)

6. Solid angle is measured in ________. (June05, 04, 10 March 08)

7. Speed of light in vacuum is ________.(June 06)

8. Lumen is the unit of ________. (March2007)

9. The process of achieving population inver-sion is called ________. (March 09 02, June07, 06)

10. 1 erg/sec/steridian = ________.11. The basic scientific principles behind Laser

were first found by ________.12. Candela is the unit of ________. (June 01)13. The wave length of ruby laser is ________.

(June 04)14. Expanded form of LASER is ________.

(March 04, June 05, April 08)15. Steridian is the unit for ________. (March

08)16. The special three dimensional photography

in which lasers are used is known as________.

17. ________ is an example for gaseous Laser.18. ________ is used to destroy ICBM in air.19. The deeper the water the ________ is the

velocity of waves.20. Bending of light waves around an obstacle

is ________.21. In ruby Laser, pumping is achieved by

________.22. The Laser which helped to prove that the

velocity of light is same in all directions is________.

23. ________ is used for bloodless surgery.

24. For a high quality Laser, the band width isof the order of ________ .

25. The rate of rotation of earth has been actu-ally determined by using ________.

26. The size of corpuscles are ________ for dif-ferent colours (March 10)

LIGHT - NATURE OF LIGHT AND

SOURCES OF LIGHT

Important Questions

5 Marks

1. Show the figure indicating pumping andPopulation Inversion?

4 Marks

1. What are the important applications ofLaser in science and technology? (March06, 04, 04, 02)

2. Write any eight applications of Laser in the

field of Medicine, Industries, Defence andin Space Science? (June 10. March 08)

3. Describe a Ripple tank. How does it help inunderstanding reflection and refraction oflight? (June 07, Marc 02, 99)

4. What are the main parts of an actual Laser?5. Give a comparison between Newton's cor-

puscular theory and Huygens's wave theo-ry? (June 08, April 08, March 05, 2003)

2 Marks

1. Define the following terms1) Interference 2) Diffraction

2. Compare ordinary light with Laser light?

(March 1999)3. What are the basic processes involved in the

working of a Laser? (March 01)4. Mention the uses of Laser in industry?

(March 08, June 06, 03)5. Give the applications of Laser in the field of

medicine? (March 09, 08, June 06)6. Compare the intensities of an ordinary light

and laser light?1 Mark

1. What is the reason for colour of a light asper Newton's law?

2. Expand "LASER"?

MAGNETISM

1. Among Air, Water, iron and Bismuth which

is not a diamagnetic substance ________.(Mar 06, Oct 99)

2. The unit of pole strength in SI units is________. (April 08, Mar 02)

3. Gadolinium is a ________ magnetic sub-stance (June 09)

4. The relative permeability for a Diamagneticsubstance is ________. (March 02)

5. Among Al, Hg, Co and Au ________ is aparamagnetic substance.

6. The unit of magnetic moment in SI systemsis ________. (March 02 mar 04)

7. Among Bi, O2, Fe and Ni ________ is thediamagnetic substance (March 07, 05)

8. If the resultant magnetic moment is not zerothen such substances are ________. (June

07)9. The units of intensity of magnetization are

________. (March 99)10. The value of the magnetic permeability of

free space 0 is ________. (Ma 08, 06, 00)11. AIR, WATER, BISMUTH are examples for

________ magnetic substances. (April 08Mar 03)

12. The susceptibility () of a diamagnetic sub-stance is ________. (Mar 05)

13. The unit of magnetic pole strength in MKSsystem is ________.(June 2005)

14. Relationship between magnetic flux density(B) and magnetic field (H) is ________(June 07).

15. The magnetic moment of a bar magnet of

length 5cm with pole strength 2 103ampere-meter is ________. (June 2008)

16. Magnetic field induction on the equatorialline is given by B = ________. (June 2008)

17. The magnetic field induction on the axialline of a short magnet at a distance 'd' is B= ________ Newton/Ampere-meter.

18. The material is used in making of electro-magnets is ________.

19. When the distance between the poles ishalved the magnetic force is ________.

20. Relation among , B and A is ________21. For Air or Vacuum r = ________.22. 1 Weber = ________ Ampere - meter

23. A pole repels with 107

neutrons forcit is 1 meter away from another poleis called as ________.

24. BO value of Andhra Pradesh is ____25. The length of a steel bar after magne

________.

MAGNETISM

Important Questions

5 Marks

1. Draw a neat labelled diagram showinnetic lines of forces, when the southbar-magnet faces geographical nolocate the neutral points? (June 00, 199)

2. Draw the figure showing the magneof force and neutral points when N-a bar magnet faces N-Pole of the(June 05, March 03)

4 Marks1. What are Dia, Para and Ferro magne

stances? Give two examples for eac2. Compare the value of relative perm

and magnetic susceptibility of dia, pferromagnetic substances? (June 07,March 04, 01)

3. What are the differences among dinetic and Para magnetic substances00)

4. What are the essential ideas of molecular theory of magnetism? 02)

2 Marks

1. What are the values of magnetic inat a distance 'd' on axial line in equ

line of bar magnet? (March 07)2. Define the following terms

1) Magnetic susceptibility2) Magnetic Permeability.

3. Write the drawback of Ewing's mtheory of magnetism?

4. Calculate the value of the magnetic mof a short bar magnet of length 5cpole strength 2 103 A-m? (March 010)

5. Though Iron rod is a ferromagnetstance why not it act as a magnet by

6. Calculate the magnetic induction atance 0.5m from the center of a sh

ANSWERS

1) Huygens; 2) Denser, Racer; 3) Zero (or)integral multiples of 2; 4) or 180; 5) Brain;6) Steridian; 7) 3108m/s; 8) Luminous flux;9) Pumping; 10) ILUMEN; 11) Dr CharlesH.Townes; 12) Luminous intensity; 13) 6943; 14) Light Amplification by StimulatedEmission of Radiation; 15) Solid angle ();16) Holography; 17) He - Ne; 18) LASER; 19)

Higher; 20) diffraction; 21) Xenon-Discharge; 22) He-Ne laser; 23) LASERS; 24)108; 25) He-Ne laser; 26) Different

ANSWERS

1) Iron; 2) Ampere - meter; 3) Ferro; 4than 1; 5) Al; 6) ampere-meter2; 7) Bi; 89) Tesla (or) Wb/m2; 10) 4 107 H/Dia; 12) Very low; 13) Weber; 14) B =

15) 1 104 amp-met2;16) ;17)

18) Soft iron; 19) Increased by 4 times= AB; 21) 1; 22) 0; 23) Unit pole; 24)

104 Tesla; 25) Increases

03

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Unit of specific resistance is...magnet on the equatorial line of a bar -magnet of length 5cm and the pole strength2 103 A-m? (April 08, March 2005)

7. State and explain Inverse square law ofMagnetism? (March 06, 04)

1 Mark

1. Define Pole strength of a bar magnet?2. State inverse square law of magnetism?

(March 09)3. What is meant by magnetic moment? What

are it's units in SI system? (June 05, 00)4. What is retentivity?

CURRENT ELECTRICITY

1. The unit of electric current is ________

(March 99)2. Given R1 = 100 Ohms and R2 = 1 Ohm cal-

culate the effective resistance, if resistancesare connected in parallel as ________(March 00)

3. What is the equivalent resistance of tworesistors 6 and 12 when connected inseries as ________.

(March 03 June 01, 05)4. The equivalent resistance when two resis-

tors of 8 each are connected in parallel as________. (March 08)

5. The symbol of a battery ________. (Mar06, 03)

6. When resistances are connected in________ the total voltage is divided

among them. (March 07)7. The unit of specific resistance is ________

. (March 03, 01)8. When three cells of voltages IV, 1.5V and

5V are connected in parallel, the total e.m.f.is ________ (March 02)

9. What is the resultant resistance of 6, 4resistors when they are connected in seriesas ________. (June 03)

10. The equivalent resistance of two resistors6, 12, when connected in series is________. (March 05)

11. A bulb is connected to a battery of 1.5V.The resistance of that filament if the currentpassing through it is 0.15amp is ________.(June 05)

12. The conductors which do not obey Ohm'slaw are called ________.(June 07, March06)

14. The value of mechanical equivalent of heatis ________ (March 09)

15. Specific resistance = ________.16. Among electrolyte, Metals, Copper and

Aluminum ________ is the Non-ohmicconductor.

17. One kilo watt = ________ watts18. Among semiconductor, Electrolytes,

Junction diode and metals ________ are theohmic conductors.

19. Chemical energy is converted into electrical

energy in ________.20. Mechanical equivalent of heat J =_______.21. Rate of electrical work done is defined as

________.22. The symbol for electrical resistance is

________.23. lMW = ________.24. 1Volt/1ampere = ________.

CURRENT ELECTRICITY

Important Questions

5 Marks

1. Draw the diagram of an electric motor andname the parts? (June 00)

2. Draw the figure of an A.C. dynamo andname its parts?

4 Marks

1. Describe with a neat diagram showingimportant parts of a dynamo. Explain itsworking? (March 10)

2. State Faraday's second law of electrolysis.

How do you prove through experiment ?(March 03, 99)

3. Derive V1/V2=i2/i1 in Transformer? (Sept.99)

4. Derive an equation for resultant resistancewhen R1 R2 R3 is connected in parallelseries? (March 02)

5. What is Ohm's law? How do you proveOhm's law through an experiment? (March05)

6. Show that the effective resistance of seriescombination in a circuit is equal to sum oftheir resistances (or) show, that R = R1 + R2+ R3?(June 06, Mar 06, 04)

7. Explain the construction of Transformerwith a neat diagram. On what principle does

it work? (June 08)8. What is Joule's law? Show that Q = i2Rt/J?

(March 08, June 03, 03)9. Explain the working of Electric motor with

a neat diagram? (March 00)

2 Marks

1. What are ohmic and non-ohmic conduc-tors? Give examples? (June 01)

2. State the laws of resistance.?(March 07)3. Write the differences between convention-

al and electronic current?4. Draw an electric circuit and label its parts?

(March 99)

5. What is specific resistance? derive. (June 08)

6. An electric installation consists of 100lamps each drawing 0.2A at 220V supply.Find the cost of working of the installationfor the month of 30days at 5 hours a day, ifthe energy is charged at the rate of Rs. 2 perunit? (March 07 June 05)

7. The P.D across a bulb is 240V and a currentof 3A flows through it. Find the resistanceof the bulb? (June 01)

8. What is the total emf when three cells ofvoltages 1V, 1.5V and 2V are connected ina) series and b) Parallel? (March 2001)

9. The resistance of a manganin wire of 1mm2

cross-sectional area is 15. Find the resist-ance of manganin wire of same length butof cross-section of 3mm2? (June 2001)

10. Calculate the equivalent resistance of tworesistors 1000 and 1 connected in paral-lel?(June 2002)

11. A house is fitted with ten lamps of each 60watt, by each lamp burns for 5 hours a dayon an average, find the cost of consumptionin a month of 30 days at Rs. 2.40 paisa perunit?(June 2004)

12. State Faraday's laws of electrolysis? (June03)

13. Mention the applications of electrolysis.(June 03)

14. What is the essential difference between

A.C. motors and D.C motor? (March 2000)15. State and explain Lenz's law? (June 2005,

2002, March 03,02)16. State Flemings right hand rule (June 2001)17. What is a transformer? On what principle

does it work? (Mar 2002, 2000, June 2000)18. Explain the process of Electro typing

(March 2008, March 08)19. Distinguish between P.D. and e.m.f.

1 Mark

1. Define the term Ohm? (March 2005, 2001)2. State Joule's law? (June 2007, 2003, 2002,

01)3. Draw an electric circuit and label its parts?4. What is the value of Joule's constant?

5. Define Watt?6. What is the commercial unit of electrical

energy?7. What is conductivity? mention units?8. What is specific conductivity? mention

units?9. What is the effect of temperature on con-

ductors and semiconductors?10. Draw a rough sketch of the graph indicating

Ohm's law? (June 01)11. Draw the graph for non-ohmic devices.?

(June 04)12. Define term electrochemical equivalent?13. What is mutual induction?

ELECTRICITY1. 1/R means ________.2. A transformer works on the principle

________ (March 09, 01)3. Unit of Z (ece) is ________.4. A device to convert electrical energy i

mechanical energy is ________.5. A transformer uses iron core to ______

(March 01)6. Electrical motor converts ________ ene

into ________ energy7. A device which converts mechanical ene

into Electrical energy is ________. (A08, March 03)

8. The unit of self inductance is ______(June 04)

9. A dynamo converts ________ i________. (March 07)

10. According to Faraday's second m1:m2:m3 = ________.

11. Transformer works on ________ only.12. In A.C motor there is no need of _____

to reverse the current directions.13. The rectangular coil in the electric mo

can be called as ________.14. Units for conductivity ________.

MODERN PHYSICS

1. The ionisation power is highest in case________. (March 02, 00)

2. When a -Particle is emitted by an atommass number ________. (March 99, 01)

3. When - particle is emitted by an atom,mass number is decreased by ______(June 00, March 03)

4. Bismuth series is a ________ series. (J02)

5. The radius of nuclear of an atom________. (June 2003)

6. Atoms of different elements having same mass number but different atomnumber are ________.

7. The electromagnetic radiation observedradioactivity is ________.(March 2007,

8. Neptunium series is a ________ . (J2006)

9. The -particle is a ________ charged pacle. (June 2000)

10. The atomic number of an atom _____when a -particle is emitted. (June March 2000)

11. and are examples for ______(June 06)

40

20Ca

40

19K

lR e

A=

ANSWERS

1) Ampere; 2) 0.99 Ohms; 3) 18; 4) 4;5) ; 6) Series; 7) Ohm-meter; 8) 5v;9) 10; 10) 18; 11) 10; 12) non-ohmicconductors; 13) series; 14) 4.18 Joules/Calories; 15) RA/L; 16) Electrolyte; 17) 1000;18) Metals; 19) Battery; 20) W/Q; 21) Electric

power; 22) ; 23) 106 W; 24) 1 Ohm.

ANSWERS

1) Conductivity; 2) Mutual induction; gm/coulomb; 4) Electric motor; 5) to minmize power loss; 6) Electrical, Mechanical;Dynamo; 8) Henry; 9) Mechanical, Electric

10) E1 : E2 : E3; 11) A.C.; 12) Commutat13) Armature; 14) Mho/Meter


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Main principle in hydrogen bomb12. ________isotope is used in the determina-

tion of age of rocks (Mar 02, 00)13. When two nucleus combine to form a single

nucleus, the difference of mass between theformer and the latter is called ________.

14. The part of fuel element in a Nuclear reac-tor is called ________ . (June 02)

15. 92U238 90Th

234 + ________.16. The person discovered Radioactivity is

________.17. Pitch blend is ________ ore18. -particles are nothing but ________.19. The relation between and T is _______.20. Actinium series is ________ series.21. are examples for ________22. Two different elements having same num-

ber of neutrons are called ________.23. Moderator in a nuclear reactor reduces the

________ of a neutron.24. ________ isotope is used in the determina-

tion of age of fossils.25. One amu is equal to ________ Mev.26. Amu stands for ________.27. ________ reaction takes place in stars.28. Main principle in hydrogen bomb is

________.29. Main principle in Atomic bomb is _______.30. Protons and neutrons are collectively

known as ________.31. Particle with a positive charge and mass

equal to electron is ________.32. The wave equation for the electron is pro-

posed by ________. (June 10)

MODERN PHYSICSImportant Questions

5 Marks

1. Draw the figure showing Rutherford'satomic model and label the parts?

2. Draw a neat sketch of the nuclear reactorand label the parts?(June 02, Mar 04, 00)

4 Marks

1. Find out the mass defect of2He4. How mass

defect is useful? (June 02, October 99)2. Describe the Rutherford's gold foil experi-

ment with a diagram, mention its importantfeatures? (June 00, March 00)

3. On which principle a Nuclear Reactor

Works. How does it work? (June 2001,March 10, 06, 05)

4. What is a chain Reaction? Explain (Mar.07)5. What are the properties of , , radia-

tions? (Or) Distinguish between the proper-ties of, and -rays? (April 08, June 05)

6. What is the (a) mass defect and (b) bindingenergy for oxygen whose nuclearmass is 15.995 amu?

7. If mass defect in Helium is 0.333amu, findout the binding energy of Helium?

8. What are the uses of Radio Isotope?

2 Marks

1. Define atomic mass and mass number.What is the difference between them?

2. What is -Decay?Give anexample(June 03)3. What are Isotopes? Give two examples.?

(March 07, 03, June 00)4. What are Isobars? Give examples? (June

03, March 04)5. What are Isotones?Give examples (June04)6. What is artificial transmutation? Explain

with an example. (June 04)7. What is nuclear fission? Give one example

with equation?8. What is radio active dating? Explain?9. Distinguish between Natural radioactivity

and artificial radio activity? (Oct 99)10. Role of Radio Isotopes in Industrial field?11. What is the role of moderator in nuclear

reactor? (March 07)

1 Mark

1. Define mass defect? (June 06 March 06, 04)2. State the law of radioactive disintegration ?

(April 2008, March 2008, June 2004)3. What is the function of moderator in a

nuclear reactor? (June 2007, 2005, 2000)4. What is Binding energy? (March 2002)5. Difference between atomic mass and atom-

ic number?6. Mention the Isotope of Neon? (March 10)7. What is Isotope? Give an example.(Jun 05)8. What is moderator? Give example (June 05)9. Relationship between decay constant ()

and half life period?10. Refer different kinds of radioactive series.

What is the common element noticed in allof them?

ELECTRONICS

1. The energy gap is highest in the case of________. (March 04, 00)

2. The charge carriers in semiconductors are________. (Mar 03, 00)

3. In p-type semi conductor majority carriersare ________. (March 09, 02, June 00)

4. To make silicon a p-type semiconductor, theimpurity to be doped in ________ (June 06)

5. Transistor acts as ________ (March 03)6. A set of_______is called program(June 06)

7. Assembler is a______language.(March 09)8. A group of_______bits is called as a BYTE

(oct 99)9. A group of 8 bits is called a______(Mar 00)10. The symbol of p-n junction diode is

________. (Mar 01)11. p-n junction diode acts as_______(Mar 99)12. Gallium type of trivalency is added to ger-

manium atoms to form ________ type ofsemi conductors. (Mar 99)

13. Camera consisting cathode rays andPhotocells are called as ________.

14. At OK semiconductor acts as an ________.15. Hole is a________charge carrier of current.16. The process of introducing impurities in

small quantities into a material is called

________.17. p-type of semi conductor is formed when

________ impurity is added to pure semi-conductor.

18. n-type of semiconductor in formed when________ impurity is added to pure semi-conductor.

19. ________ is the process of converting ACinto DC.

20. Microphone converts ________ signals to________ signals.

21. ________ is used for scanning purpose.22. TV set is also called ________.23. A combination of ICs is called ________.24. iconoscope converts ________ signal to

________ signal

25. ALU stands for ________.26. A binary digit either 1 or O is called a

________.27. In the 8 bit code first four are called28. BCD stands for _____.29. Machine language depends on ________.30. ________ translates high level language

instructions into ________ instruction.31. Some examples of high level languages

________.32. In rectifier circuits ________ are used.33. Trivalent impurities are called as ________.34. Pentavalent impurities are called as

________.

ELECTRONICS

Important Questions

5 Marks

1. a) Draw the symbol of diode?b) Draw the sketches of forward bi

reverse bias condition? (June 04)2. Draw the block diagram of Radio

casting ? (March 00)3. Draw the block diagram of TV broad

? (June 04, March 04)4. Draw the block diagram of a com

(March 08, 06, 01, June 02)5. Draw the sketches of P-type and N

semiconductors? (June 08, March 066. Draw the sketch of the formulation

Junction diode with depletion region

4 Marks1. State the properties and uses of a j

diode? (April 08, March 05)2. State the properties and uses of a j

transistor? (March 09, 07, 03)3. Explain briefly various stages of

Communication with a block di(March 00).

4. Explain the different stages of TV cnication with a block diagram. (Mar

5. How do you classify solids based otrically? (June 07, 00)

6. Draw the symbol of transistors. Sproperties and uses of transistors? (J

7. Draw the block diagram of CoDescribe the functions of each of th

ponents?8. What do you know about a micropro

(March 2000)9. Explain the following terms?

a) Intrinsic Semi Conductorb) Doping c) Energy band d) H

2 Marks

1. What is diode's Forward bias and Rbias?

2. Distinguish between a machine laand a high level language? (June 02

3. What are hardware and software ofputer? (June 07, March 05)

4. Write any three high level lang(March 00)

5. Mention four machine languages? (J

6. How important is a computer in modlife? (June 2001)

7. Draw the figure of p-n-p transistor?

1 Mark

1. What is the effect of temperatureenergy gap of a semiconductor? (Ma

2. Define BIT and BYTE? (March 00)3. What is doping? (April 08, June

March 04, 00)4. Draw the p-n-p transistor?5. What is transistor?6. What is BOD?7. Draw the n-p-n transistor?

16

8O

1 21 1H, H

ANSWERS

1) -particles; 2) remains same; 3) 4 units; 4)4n+1; 5) 1013cm; 6) Isobars; 7) ; 8) 4n+1; 9)Positively; 10) Increases by one unit; 11) iso-bars; 12) ; 13) Mass deficiency; 14)Reactor core; 15) 2He

4; 16) Becquerel; 17)Uranium; 18) Electrons; 19) = 0.693/T; 20)4n+3; 21) Isotopes; 22 ) Isotones; 23) Velocity;24) ; 25) 931.5; 26) Atomic mass unit; 27)Nuclear fusion; 28) Nuclear fusion; 29)Nuclear fission; 30) Nucleons; 31) Positron;32) Schrodinger

146 C

235

92U

ANSWERS

1) Insulator; 2) Electrons & holes; 3) Holes; 4)Aluminium; 5) An amplifier; 6) Instructions;7) Machine; 8) 8; 9) BYTE; 10) ; 11)Electric switch (or) Rectifier; 12) p-type; 13)Iconoscope; 14) Insulator; 15) Positive; 16)Doping; 17) Trivalent; 18) Pentavalent; 19)Rectification; 20) Sound, Electrical; 21)Iconoscope; 22) Kinescope; 23) MicroProcessor; 24) light, electrical; 25) ARITH-METIC LOGIC UNIT; 26) BIT; 27) Zonebits; 28) Binary Coded Decimal; 29) CPU; 30)Compiler, machine language; 31) BasicFortran 32) Diodes;33) Acceptors; 34) Donors


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UNITS - 1, 2

Hydronium ion is formed by..ATOMIC STRUCTURE

1. Electronic configuration of chromium is______. (June 04, 01, June 09)

2. Among 3p, 4s, 3d and 4p______ energy isless. (March 09, 07, 05, 03, June 05, 02, 00)

3. Number of sub shells present in "L" orbit is______. (March 09, 04)

4. ______ introduced elliptical orbits. (June01, March 03, 01, 00)

5. The number of d-orbitals present in n = 3 is

______. (June 08)6. 'l' value of 'd' sub shell is ______. (March

99)7. The clockwise spin of electron is represent-

ed by ______. (Oct 99)8. The number of 'm' values for l = 3 is

______. (March 08)9. The distance between the nucleus and

outer-most orbit gives the ______. (June07)

10. 1s2 2s2 2p6 3s1 is the electronic configura-tion of the element ______. (March 00)

11. Atomic number of Magnesium is ______.(March 00)

12. The electronic configuration of sodium (Z =11) is ______. (March 2001)

13. The shape of s-orbital is ______.14. ______ gives the number of maximum elec-

trons in Main Orbit.15. Quantum theory of radiation is proposed by

______.16. The shape of p-orbital is ______.17. After filling the 3d orbital, the electron

enters into ______ orbital.18. The electronic configuration of ______ ele-

ments do not strictly follow the rules.19. Rutherford's model of an atom is also called

______.20. The number of sub-energy levels in a given

shell is equal to ______.21. The value of Planck's constant is ______.22. Magnetic quantum number was proposed

by ______.23. Uhlenbeck and Goudsmit in 1925 proposed

______ quantum number.24. (n + l) value of 4s is ______ that of 3p.25. Electron affinity is the highest for the halo-

gen ______ in that group.26. Place where the probability of electron is

zero called as ______.27. Most probable place of electron is called as

______.28. Packets of electromagnetic radiation are

called as ______.29. Units for Ionisation energy is ______.30. As per Bohr mvr = ______.

ATOMIC STRUCTURE

Important Questions

5 Marks

1. Draw shapes of s and p-orbital's ?(June 05,March 01, Oct 99)

2. Draw the shapes of five d-orbital's? (June04)

3. Draw the diagram showing the sequence offilling of various atomic orbital's (or)Moeller diagram? (June 07, March 01)

4 Marks

1. What are the important features of Ruther-ford's planetary model? (March 05)

2. State the postulates of Bohr's model?(March 2010, April 08, June 08, 05, 03)

3. State and explain with one example Hund'srule of maximum multiplicity? (June10, 07,02, 00 Mar 07, 06)

4. Define the ionization energy and mentionthe factors that influence it? (Mar 08, 04June 07)

5. State and explain Pauli's exclusion principlewith an example? (March 06)

6. Explain the four quantum numbers briefly ?(March 07)

2 Marks

1. Write the electronic configuration of thefollowing elements1. Nitrogen (March 04)2. Magnesium (March 05, June 02)3. Phosphorous (June 06, 01, March 04)4. Calcium (Mar 99, April 08)5. Chromium (June 06, 01, Marc 04, 09)6. Copper (Mar 05, June 02)7. Zinc (June 00)8. Sodium (Mar 09)

2. Explain why electrons enter into '4s' orbital

but not '3d' orbital (or) The energy level of'3d' is greater than '4s'. Give reason? (April08, Mar 08, 06 June 04, Oct 99)

3. Mention the relation between the size of theatom and Ionisation energy? (March 99)

4. Distinguish between orbit and orbital?(March 02)

5. What are the factors that influence the ion-ization energy ? (March 04)

6. What are the upper and lower limits of 'm'for l = 4? (March 10)

1 Mark

1. What is the value of Planck's constant?(Mar 2007)

2. Write the Planck's equation?(March 07, 05)3. What is a stationary orbit? (Oct, 99)4. State Aufbau's principle? (June 08)5. State Pouli's Exclusion principle? (June 05)6. Define atomic radius? (June 08, March 08,

June 03)7. Define Ionisation energy? (June 08, 07, 03)8. Define Electron affinity? (June 07)9. What is a Nodal plane? (March 03)10. Define Hund's rule of maximum multiplici-

ty? (March 06)11. What are the degenerate orbitals? (June 10)

CHEMICAL BOND

1. Shape of Co2 is_____.(June 06, Mar. 09,00)2. Example for s-p overlap is _____. (June 04)

3. _____ molecule contains V shape.4. Bond angle in water is _____ (June 03)

(March 02, Oct 99)5. _____ type of overlap is present in F2 (June

08)6. NH3 has _____ shape. (June 04, 03)7. The shape of Pcl5 molecule is _____. (June

02, March 01)8. Example for triple bond molecule _____.9. Sigma () bond is _____ than Pi() bond.10. Shape of CH4 is _____.11. In coordinate covalent bond, both the elec-

trons are supplied by _____.12. Hydronium ion is formed by ____ bonding.13. The acceptor in Ammonium ion is _____.14. In a triple bond _____ sigma and _____ Pi

bonds noticed.15. Number of lone pair electron on oxygen in

water molecule is _____.16. Angle between p orbitals in _____.17. Shape of PH3 molecule is _____.18. Overlapping of orbitals along inter nuclear

axis leads to _____.

CHEMICAL BOND

Important Questions

5 Marks

1. Draw the diagram showing the formation ofa triple bond in Nitrogen molecule? (June08, Mar 04, 00,99)

2. Draw the diagram showing the formation ofdouble bond in Oxygen molecule? (Oct 99)

3. Draw the diagram showing sigma() and'Pi' bond? (March 99)

4 Marks

1. Explain p-p overlap with an example? (Mar08)

2. Explain s-p overlap with an examp(March 06)

3. Explain the formation of sigma andbonds duly showing orbital overlapp(or) explain how sigma and pi bonds formed? (March 99, March 2010)

4. Explain the formation of a coordinate colent bond? (Mar.08, June2010, 08, 02)

5. Explain the formation of a Triple bo(June 06, 04, 00 March 09, 04, 00)

6. Explain the formation of a Double bonoxygen molecule? (April 08, June 07 Mar 07, 01, Oct 99)

2 Marks

1 Draw the bond formation in Hcl molecu(March 99, 2010)

2. Draw the shape of Ammonia (NH3) mocule and explain it? (June 2006, March 04, 02, Oct 99)

3. Draw the shape of CO2 and NH3? (Mar. 4. What is the shape of Pcl5 molecule? (A

08, June 07, 03, March 07, 03)5. Draw the shape of water molecule

explain it?(March 09, 05, 01, 001 June 06. Draw the shape of phosphorous trichlor

(Pcl3) ?(March 03, 01, 00 June 00)1 Mark

1. Name two molecules that have pyramshape? (March 03, June 01)

2. What are multiple covalent bonds? Giveexample (June 06)

3. What type of bonds are present

Hydronium (H3O)+ ion?4. State Octet rule. Give an example?

PERIODIC CLASSIFICATION

OF ELEMENTS

1. Mendeleev's periodic table is based on _____. (June 01, 02)

2. The ionization potential in a group fromto bottom _____. (June 00)

3. Among (Ne, Ca, Na), (Li, Na, K), (H2, O2) and (Na, Br, Ar) ____ is a Dobereintriad. (March 01)

4. The first classification of elementsattempted by _____. (March 07, Oct 99)

5. The first period has_____elements. (J06)

6. _____ period is incomplete. (June 08)7. Elements from atomic number 58 to 71

known as _____. (March 03, Oct 99)8. Elements from atomic number 90 to 103

known as _____. (June 03)9. _____ group elements are used on oxy

ing agents in periodic table. (June 02)10. Electro negativity is measured with ___

scale.11. 'S' and 'P' block elements together called

_____.12. 'd' block elements are called as _____.13. Other name of f-block elements is ____14. Lanthanides belong to _____ period.

ANSWERS1) [Ar]4s13d5; 2) 3p; 3) two; 4) Sommerfeld;5) 5; 6) 2; 7) ; 8) A; 9) Atomic Radius; 10)Sodium; 11) 12; 12) 3s1; 13) Sphere; 14) 2n2;15) Max Planck; 16) Dumbel; 17) 4s; 18)Heavier; 19) Planetary model; 20) n2; 21)6.625 1034 J.Sec; 22) Lande; 23) Spin; 24)Equal; 25) Chlorine; 26) Nodal plane; 27)Orbital; 28) Photons; 29) ev; 30) nh/2

ANSWERS

1) linear; 2) Hcl; 3) Water; 4) 104; 5) end-on-end (P-P); 6) Pyramidal; 7)Trigonal bi-pyram-idal; 8) N2 or C2H2; 9) Stronger; 10) Tetra-hedral; 11) One of the atoms; 12) Coordinatecovalent bond; 13) H+; 14) One, two; 15) Two;16) 90; 17) Pyramidal; 18) Sigma bond.

CHEMISTRY BIT BANK/ IMPORTANT QUESTIONS


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8

UNITS - 4, 5

The formula of epsom salt is..15. Actinides belong to _____ period.16. One Fermi = _____.17. Eka boran is otherwise called as _____.18. Mendeleev named Gallium as _____.19. Radio active element among alkalies is

_____.20. Radio active element among alkaline earth

metals is _____.21. General electronic configuration of alkaline

earth elements is _____.22. Elements having ns2np6 general electronic

configuration are _____.23. Modern periodic table is based on _____.24. _____ discovered scandium.25. _____ law states that the properties of ele-

ments are the periodic function of their

atomic weights.26. As we move from left to right in a period

the values of Ionization energy, electro neg-ativity ______.

27. Element belongs to 3rd period and 2ndgroup is _____.

PERIODIC CLASSIFICATION

OF ELEMENTS

Important Questions

4 Marks

1. How does the Atomic radius vary in a peri-od and in group? (March 06, 02, Oct. 99)

2. How does the following properties vary in aperiod and in a group?A) Atomic radiusB) Oxidising propertyC) Electro negativity

D) Electropositive character(June 06, 03, Mar 09, 06, 4)

3. What is modern periodic law? Explain themain features of modern periodic table? (or)Explain the classification of elements basedon their electronic configuration (or)Explain the main features of long formperiodic table? (Mar 10, 08, June 10, 07)

4. Write the general electronic configurationof inert gases. (or) Explain the electronicconfiguration of inert gases? (March 07)

2 Marks

1. What is Newlands concept of octaves?(March 05)

2. How does the atomic radius vary in a peri-od and in a group of periodic table? (March06, 02, 99)

3. How does the ionisation energy vary in aperiod and in a group? (March 09)

4. Define Oxidation and Reduction? (Oct, 99)5. Distinguish between electro negativity and

electro positivity? (Oct 99)6. The inert gases are more stable-why?

(March 07)1 Mark

1. What is Newlands concept of octaves?(March 05)

2. How does the atomic radius vary in a peri-od and in a group of periodic table? (March06, 02, 99)

3. On which atomic property is the mende-leev's periodic table based? (June 2000)

4. Name the inert gases?5. Which group of elements can be used as

oxidising and reducing reagents? (June 02)

ALKALINE EARTH METALS

1. CaO is a _____. (Mar 09, 04, 00)2. Among Be, Mg, Ca and Ba which one gives

peroxide in addition to oxide is _____. (Mar2001)

3. During the electrolytic extraction of Mg thecathode used is _____. (March 07, June 00)

4. Carnallite is the ore of _____. (June 08, Mar06, 2010)

5. Dolomite is a mineral of _____. (March 99)6. Among Potassium, Sodium, Rubidium and

Radium locate Alkaline earth metal _____.(June 03)

7. Formula of carnallite is _____. (March 08)8. The chemical formula of magnesite is

_____. (March 03, June 07)9. The formula of Epsom salt is _____. (June

10)10. The reagent used to prepare BeH2 from

BeCl2 is _____. (June 06)11. The number of water molecules present in

Epsom salt is _____. (October 1999)12. The atomic number of Magnesium is _____

(March 2000)13. _____ metal gives peroxide in addition to

oxide when burnt in excess of oxygen.(April 2008, March 06)

14. Formula of Dolomite is _____. (March 09)15. Ore of Barium is _____.16. Ore of Beryllium is _____.17. _____ number of molecules of water is

removed from carnallite in the first step.18. [Ar]4s2 refers _____.

19. Least abundant alkaline metal in the earthcrust is _____.

20. Chlorides of Mg, Ca, Sr and Ba are solublein _____.

ALKALINE EARTH METALS

Important Questions

5 Marks1. Draw a neat diagram showing the extraction

of magnesium from it's ore. Label it's parts?(June 06, 02, Mar 06, 02)

4 Marks

1. Write the reaction of group IIA elementswithi) Oxygen ii) Hydrogeniii) Chlorine iv) Water

(June 08, 04, 01, Mar 03, 99)2 Marks

1. Give the equations for the preparation ofmagnesium hydroxide and zinc hydroxidefrom their oxides of magnesium and zinc ?(June09, 02)

1 Mark

1. How many water molecules are present inEpsom Salt? (June 06, 04)

2. Why do you add Kcl and Nacl to Mgcl2 dur-ing Mg extraction? (June 05, 01; March 01)

SOLUTIONS

1. 10 grms of Na2Co3 is dissolved in 190grams of water. The w% of solution is_____. (March 09, 05)

2. The amount of oxalic acid (mol. wt = 126)required to prepare 100 ml of 0.2 M solu-tion is _____. (June 05)

3. 4ml of alcohol is dissolved in 36 ml ofwater. The volume percentage of solution is_____. (June 08, 07, Mar 06, 02, June 10)

4. Solubility of a substance depends on _____.

(March 07)5. Naphthalene is soluble in _____.6. When 10 gm of Na2Co3 is present in 120

gms of aqueous solution, the weight per-centage = _____. (June 2005)

7. Molecular weight of Na2Co3 is _____.(March 08)

8. If 2 moles of Na2Co3 are dissolved in 3moles of water, the mole fraction of water is_____. (June 2000)

9. If 12 gms of sodium carbonate is present in120 gms of water, the weight percentage ofsodium carbonate is _____. (April 08,March 02, June 03)

10. Solubility of _____ substance decreaincrease in temperature.

11. Solubility of gases _____ as tempincreases.

12. Example for polar solvent is _____13. Example for non-polar solvent is __14. Acetic acid is a _____ electrolyte.15. Absence of _____ for W% and V%16. _____ solutions are unstable.17. Molarity depends on _____.

18. W% =weight of solute

100_ _ _ _ _ _ _

19. V% =_ _ _ _ _ _ _ _ _ _

100Volumes of solution

20. Molarity =

_ _ _ _ _ _ _ _ _ _

1Volumes of solution V

(V = in liters)21. The ionization of CH3COOH, NH

partial in water, hence they are ____22. As the temperature of dilute wea

trolytes increases the percentage ionof them _____.

23. Vinegar means _____.24. Example for non-electrolyte _____.25. Soda is a solution of _____ and ___

SOLUTIONS

Important Questions

5 Marks

1. Draw the diagram of standard flamention their capacities? (March 20

4 Marks

1. Define molarity and mole fraction atheir equations? (March 09, 03, June

2. How do you prepare 0.1M standard

solution? (June 04, 01)3. How do you prepare 0.1M Standard

solution using 250ml standard (March 2001)

4. What is meant by concentration oftion? In how many ways the conceis expressed? (March 03)

5. 20ml of alcohol is mixed with 16water. Find out the V% of this sol(March 2007)

6. Calculate the number of moles ofacid present in 400ml of it's 0.025mtion ?(Oct. 1999)

7. 10grams of sodium carbonate is pr

ANSWERS

1) Atomic weight; 2) Decreases; 3) (Li, Na,K); 4) Doberiener; 5) Two; 6) Seventh; 7)Lanthanides; 8) Actinides; 9) VIIA; 10)Pauling; 11) Representative elements; 12)Transition elements; 13) Inner transition ele-ments; 14) 6th; 15) 7th; 16) 1013 cm (or)1015 m; 17) Scandium; 18) Eka aluminum;19) Francium; 20) Radium; 21) ns2; 22) Inert

gases; 23) Atomic number and electronic con-figuration; 24) Nelson; 25) Mendeleev; 26)Increases; 27) Magnesium

ANSWERS

1) base; 2) Ba; 3) iron pot; 4) Magnesium; 5)Magnesium; 6) Radium; 7) MgCl2.Kcl, 6H2O;8) MgCo3; 9) MgSo4.7H2O; 10) LiAlH4; 11)Seven; 12) Twelve; 13) Barium; 14)CaCo3.MgCo3; 15) Barytes; 16) Beryl; 17) 4;18) Calcium; 19) Radium; 20) Water

ANSWERS

1) 5; 2) 2.52 g; 3) 10; 4) Solute , solvent perature; 5) Kerosene; 6) 1000/120; 7) 0.6; 9) 10%; 10) Ce2(So4)3; 11) decreaswater; 13) kerosene; 14) weak; 15) unisuper saturated; 17) temperature; 18) we

solution; 19) volute of solute; 20) wesolute; 21) electrolytes; 22) also increasdilute acetic acid; 24) sugar (or) urewater, Co2



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UNITS - 5, 6, 7

Bond angle in diamond is120grams of the aqueous solution?Calculate the weight percentage? (June 04)

8. The weight percentage of Nacl solution is10. If the weight of solution is 150grams.Calculate the weight of Nacl and water?(March 2001)

9. 15ml of hexane is mixed with 45ml of hep-tane calculate the V% of this solution?(June03)

10. 2.12 grams of sodium carbonate (Na2Co3)is present in 250ml of its solution. Calculatethe molarity of the solution? (Molecularweight of Na2Co3 = 106) (Mar 09, 03,, June08, 01)

11. Calculate the amount of Oxalic acid(H2C2O4 2H2O) in 500ml of 0.2m solution?

(MW of oxalic acid is 126) (June 07)12. Calculate the number of moles of NaOH

present in 750ml of 0.4m solution? (April08, June 06, 00; March 06, 04, 02)

13. 2 moles of Na2Co3 is dissolved in 3 molesof water. Calculate the mole fraction ofNa2Co3 and water?(June 05 March 05)

14. 4grams of NaOH (mol wt = 40) is dissolvedin 16.2 grams of water (mol. wt = 18).Calculate the mole fractions of NaOH andwater? (June 2002, March 2000)

15. What are the factors that affect the solubili-ty of a solution? Explain them?

2 Marks

1. Copper sulphate is soluble in water, but not

in kerosene. Give reason ? (March 08)2. 2.12 grams of Na2Co3 is present in 0.25 liter

of it's solution. Calculate the molarity of thesolution? (Molecular weight of Na2Co3 is106) (June 2010)

3. 15ml of Hexane is mixed with 45m ofHeptane. Calculate the V% of this solution?(March 2010)

1 Mark

1. Give one example for each of polar and nonpolar solvents?

ACIDS BASES

1. Weak acids ionize upto _____. (March 10)2. The colour of methyl orange indicator in

acidic medium is_____. (March 07, 02,June 06)

3. The colour of phenolphthalein indicator inbasic solution is _____. (March 01)

4. The pH of a solution is 8, its [H+] is _____(March 03)

5. The value of Kw changes with changing_____. (June 08, 07, March 08)

6. The heat of neutralisation for a strong acidand a strong base is _____. (June 06, March1999)

7. CaO is a _____. (March 2000)8. pH of water is _____. (June 03)9. If the pH of a solution is 10, its [H+] is

_____. (March 2004, June 02)10. Quantity of heat of neutralisation between a

strong acid and weak base is _____. (June2005)

11. The body fluid whose pH is greater than 7is _____.

12. Formula for acetic acid is _____. (March2000)

13. If the pH > 7 then the solution is a _____.(April 2008, March 2006, 2001)

14. Ionic product of water at 25C is _____.(March 2009, June 2005)

15. If pH = 6, then [H+] = _____. (June 2009)16. MgO is a _____. (June 2009)17. H2SO4 + Ca(OH)2 =_____ (March 2004)18. Decreasing order of volatility of Hcl,

H2SO4 and CH3COOH is _____.19. _____ are formed when metallic oxides are

dissolved in water.20. _____ give OH in the presence of water.21. pH value of gastric acid is _____.22. pH value of blood is _____.23. Amount of energy spent for the ionization

of acetic acid is _____.24. If pH is "1" the nature of that solution is

_____.25. _____ introduced the term pH.26. Combining of H+ and OH is called _____.27. log[H+] = _____.28. At _____ temperature the ionic product of

water is observed as 1 1014 Mol2/liter.29. If [OH] = 105 them the pH of a solution is

_____.

ACIDS BASES

Important Questions

5 Marks

1. Draw the structure of benzene?(March2009, 2000)

4 Marks

1. What are the limitations of Arrhenius theo-ry? (June 05, 02, 00)

2. What are acids, bases and neutralizationaccording to Arrhenius? (June 05, 03, 02)

3. Define strong acid, strong base, weak acidand weak base. Give one example for each?(March 02)

4. What is heat of neutralization? Give it'svalue for a reaction between a strong acidand a strong base (or) what is heat of neu-

tralization? Give an example? (June 2006,March 2003, 2000)

5. The heat of neutralization for a reactionbetween a strong acid and a strong base is13.7 Kcal/mole. Explain why it is less than13.7 kcal/mole for a reaction involving aweak acid or a weak base?

2 Marks

1. Write two chemical properties of acids withequations? (June 2004)

2. Write the Arrhenius theory of acids andbases? (March 06, June 2002)

3. What is Ionic product of water? Give itsvalue at 25C? (March 07, 04, 02, 01, 99,June 08, 00)

4. Define heat of neutralization? (March 09,

08, 200)5. Calculate the pH of 0.002m Hcl? (March

1999)6. Distinguish between acids and bases? (June

03)1 Mark

1. Give one limitation of Arrhenius theory ?(June 07)

2. Define pH? (June 06, 01; March 05, 99)3. Calculate the pH of 0.001M Hcl? (April

2008, March 2001)4. Distinguish between H+ and [H+]? (Oct, 99)5. What is the heat of neutralization for a

strong acid and strong base? (March 2003)6. What is Ionic product of water? (March 08,

09)

7. Define neutralization? (March 08, 09)8. Arrange the following acids in the increas-

ing order of volatility. Hcl, H2SO4 andCH3COOH?

9. Define a strong acid?

CHEMISTRY OF CARBON

COMPOUNDS

1. Drugs which act on blood circulation are_____. (March 10)

2. Bond length (in 'A' units) in Graphite is_____. (March 10, 09, 06, 05)

3. Saturated hydro carbon is also called as_____. (June 10)

4. Example for COC functional group is_____. (June 10)

5. The presence of alcoholic functional groupis tested by addition of _____ metal.(March 10, 06)

6. Fe2O3 + 3CO ______ (March 2003)7. Alkenes undergo _____ reactions. (March

2005, 2007)8. Alkanes undergo_____reactions. (Mar. 00)9. CH4 + 2O2 _____ + _____ (March 1999)10. HC CH + 2Cl2 _____. (Mar 1999)11. The general formula for alkenes is _____.

(March 08, 1999)12. The general formula for alkanes is _____.13. The general formula for alkynes is _____.

(March 08, 1999)

14. The functional group of aldehydes is ___15. The functional group of carboxylic acid

_____.16. Solid 'Co2' is called as _____. (April

June 06, Mar 03, Oct 99)17. The balanced equation showing the pre

ration of acetylene by the hydrolysis of cium carbide is _____. (March 2002)

18. Alkenes undergo addition reactions becaof _____. (March 2004)

19. The refractive index of diamond is ___(March 07)

20. The name of C8H18 is _____. (April June 04)

21. COOR is called as _____. (March 02,00, June 05)

22. Among C4H10, C4H8, C4H6 and C6H6 ___is a Alkane. (March 1999)

23. Among the CH3COOC2H5, C3H7NCH3CHO and CH3COOH which is example for CCOOR functional _____

24. Among OH, CHO, O and

____ is the functional group of Keto(June 2002).

25. NH2 is called as ____.26. Chief component of cooking gas is ____27. Dry ice means ____. (March 08)28. Number of rings in C60 (Buck min

fullerene) are ____.29. ____ pentagon and ____ hexagon rings

carbon are present in C60.

30. Distance between any two layers Graphite (A) is ____.

31. Bond angle in Graphite between caratoms is ____.

32. Bond angle is diamond in ____.33. Ethylene on polymerisation gives ____.34. Among Methane, Benzene, Propane

Butane ____ is the Aromatic compound35. The credit for the discovery and structu

studies of C60 goes to ____ .36. Dilute acetic acid is called as ____ .37. Molecules with same formula but differ

structural function are called as____ .

C =C =

ANSWERS

1) less than 100%; 2) red; 3) pink; 4) 108; 5)temperature; 6) 13.7 K.cal/ Mole; 7) base; 8)7; 9) 1010; 10) less than 13.7 K.cal/ Mole; 11)blood; 12) CH3COOH; 13) base; 14) 1 10

14

mole ion2/liter; 15) 106; 16) base; 17) CaSo4+ 2H2O; 18) CH3COOH > Hcl > H2SO4; 19)Bases; 20) Bases; 21) 1 to 2; 22) 7.32 7.45;23) 0.3 K.cal; 24) strong acid; 25) Sorenson;26) Neutralization; 27) pH; 28) 25C; 29) 9

ANSWERS

1) Cardio-Vascular; 2) 1.42; 3) Paraff

4) CH3-O-CH3(Either); 5) Sodium (N6) 2Fe + 3CO2; 7) Addition; 8) Substituti9) CO2 + H2o + 212.8 K Cal; 10) Cl2 CH - CCl2; 11) Cn H2n; 12) Cn H2n + 2; 13) Cn H2n 14) CHO; 15) COOH; 16) DRY IC17) CaC2 + 2H2O HC CH + Ca(OH18) Double bond or unsaturated; 19) 2.41;Octane; 21) Es ter; 22) C4H8; 23) CCOOC2H5; 24) ; 25) Amine;Butane; 27) Solid CO2; 28) 32; 29) 12, 30;3.24; 31) 120; 32) 109 28'; 33) Polyeth34) Benzene; 35) H-W.K. ROTO and SMALLEY; 36)VINEGAR; 37) ISOMERIS

C = OC = O



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UNITS - 8, 9

Resultant product of two amino acids isCHEMISTRY OF CARBON

COMPOUNDS

Important Questions

4 Marks

1. Compare the structures of diamond andgraphite? (June 03)

2. Write the addition reactions of alkenes ?(June 01)

3. Write a short notes on substitution reactionsof Alkanes? (March 2007, June 2005) (or)given reaction of CH4 (Methane) with Cl2(chlorine) in the presence of sunlight in fourstages with balanced equations?

2 Marks

1. Why does diamond act as a bad conductorof electricity?(Oct 99)

2. Write the differences between Alkanes andAlkenes? (March 2003)

3. Write names of two Hormones?(March 10)1 Mark

1. What is allotropy? (June 03, 01)2. What is catenation? (March 2003, June 00)3. What is Dry ice?4. What is polymerization? (June 2006, March

2004)

CARBOHYDRATES

AND PROTEINS

1. First Synthetic dye was prepared by ____.(June 10)

2. Calories required for bicycling for one hourare _____. (June 10)

3. Structure of aspirin drug is _____ (June 10June 05, 04, 01)

4. Structure of paracetamol _____ (June 02)5. Structure of aniline Yellow dye molecule

_____.6. _____ is the by-product of alcoholic indus-

try (March 10 June 03)7. Among sucrose, Fructose, Glucose and

Maltose the Sweetest sugar is _____.(March 2004, 09, Oct 1999, April 2008)

8. A polysaccharide is _____. (June 03)9. Aldose means _____.10. Hexoses Contain _____. (March 2006)11. In the Tollens test glucose reduces _____

(June 2000)12. Defecation is addition of _____.

13. Among Bagasse, Presmed, Sugar andMolasses which is not a byproduct of sugarindustry _____. (March 2005)

14. The spent cane is called _____. (June 06)15. _____ is used to separate the crystals of

sugar and liquid juice. (June 01)16. _____ is the micro organism used for fer-

mentation of molasses.(June 07,00, Mar.07)17. _____ Enzyme breaks the sucrose.18. Ammonical silver nitrate solution is called

as _____ reagent. (Oct 99)19. The CONH bond is called as _____.

(March 2004)20. The reagent used to prepare BeH2 from

BeCl2 is _____. (June 06)21. Consumption of denatured spirit causes

_____.22. Sucrose is an example of _____.23. The general formula of polysaccharides

_____.24. Yeast produces enzymes namely _____.

25. The widely used solvent next to water is_____.

26. Mannose is a _____.27. Starch is tested by _____.28. The number of monosaccharide units pres-

ent in a oligosaccharide is _____.29. The process of passing SO2 to sugar cane

juice is called ______.30. Silver mirror is formed in ______ test.31. Press mud used as _____.32. The product containing 96% alcohol and

4% water is commercially called ______.33. Salt like structures of amino acids is called

______.34. The resultant product of two amino acids is

called ______.

35. ______ calories/hour require to walk for 5.8Km in one hour.

36. Amino acids are building blocks of _____.37. Human body can not synthesize certain

amino acids called ______.

CARBOHYDRATES

AND PROTEINS

Important Questions

5 Marks

1. Draw the diagram showing the parts ofsugar industry? (March 10, 07, 06, 04, 01)

2. Draw the chart showing the alcohol manu-facture (or) (April 2008 June 08) Draw theblock diagram of manufacture of alcoholand label the parts? (June 2010, Mar 08, 05,03, June 05, 01, 00)

4 Marks

1. How the Tollen's reagent is prepared? Howis glucose tested with it? (Mar 09, June 02)

2. How the Benedict's reagent is prepared?How is glucose tested with it? (June 2002)

3. How the alcohol is manufacturedIndustrially? (March 09)

4. Describe a suitable diagram the differentsteps involved in the manufacture of sugar?(June 2002. March 2000)

5. What are proteins? How does a peptidebond form? Mention the important func-tions of proteins? (March 2002, Oct 1999)

6. What are the main steps involved in the pro-ductions of sugar-cane? Mention the impor-tant by-product and its use? (June 2002)

2 Marks

1. Mention the various steps involved in themanufacture of sugar-cane? (June 2002,March 2000)

2. How do you perform A) Tollen's Test B)

Benedicts test for detecting 'sugar'? (March2002)

1 Mark

1. What is sulphitation? (June 03)2. Define protein? (March 2002)3. What is meant by peptide bond? (March

2002)5. What are Amino acids? Give two examples.

(June 2006, 04)6. What is absolute alcohol?7. Write down the balanced equation showing

the preparation of zinc hydroxide from cal-cium oxide? (June 02)

OIL AND FATS

1. Shaving soap contains excess of _____.

(March 03, 01, June 02)2. The catalyst used in the Hydrogenation of

oils is _____.3. The formula for stearic acid is _____. (June

2008)4. _____ and _____ are examples of oils giv-

ing seed (march 07, June 06)5. Deodorant soap contains _____. (June 06)6. 2Na3 PO4+3CaCl26NaCl+ _____ (March

2000)7. The formula of linolenic acid is _____

(June 2000)8. The unsaturated oils can be converted to

saturated oils by _____. (March 2001)

9. Detergents are used even in hardbecause _____.

10. Catalyst used in the preparation ofpathi. (June 2002)

11. The formula of lauric acid is _____12. The formula of Oleic acid is _____13. For various medical purposes ___

are used14. Vanaspathi is a fat obtained by the c

hydrogenation of _____.15. Chemical formula of soap_____.16. Li+ salt is used as17. The hydrolysis of oils and fats takin

in the presence of an alkali is called 18. Deodorant soap or antimicrobial so

tains _____.

19. The cation of soap useful for dry cle_____.

20. _____ is the by product in saponific

OIL AND FATS

Important Questions

5 Marks

1. Draw the sketch of hydrogenation (June 03)

4 Marks

1. How is soap industrially manufa(June 2008)

2. How do you test the quality of a soap10, April 08, June 07, 06, Mar 07, 01, Oct 99)

3. How is detergent industrially mtured? (March 06, 02, 00)

4. Write the comparision of steps invothe manufacturing of soap and dete

(or) what are the differences in thefacturing of soap and detergent? 2008, 1999)

5. Write the uses of soap? (June 2006)2 Marks

1. Write the industrial uses of oils?(Jun2. Distinguish between a soap and a

gent? (March 1999)3. What are the characteristics of good

face powder?( June 08, Mar 08, 2001 Mark

1. What are the advantages of hydrogof oil? (March 09, 04, June 2002)

2. What is soap? (March 2007, 2002)

ANSWERS

Answers

1) Perkin; 2) 414 Calories/hour;

3) ; 4) ;

5) ;

6) CO2; 7) Fructose; 8) Starch; 9) Polyhydroxyaldehydes; 10) 6 carbons; 11) Ag+ ion to Agmetal; 12)Ca(OH)2; 13) Sugar; 14) Bagasse;15) Centrifuge; 16) Yeast; 17) Invertase; 18)Tollen's; 19) Peptide bond; 20) Li Al H4; 21)Blindness; 22) Oligo saccharide; 23)(C6H10O5)n; 24) Invertase and Zymase; 25)Alcohol; 26) Monosaccharide; 27) Iodinesolution; 28) 2 to 9; 29) Sulphitation; 30)Tollen's reagent test; 31) Manure; 32) Rectif-ied spirit; 33) Zwitter ions (or) dipolar ions;34) Dipeptide; 35) 228; 36) Proteins; 37)ESSENTIAL AMINO ACIDS

N = N NH2O O

OH

||O

NHC CH3

O

OH

||O

NHC CH3

O

COOH

O C CH 3||

O

O

ANSWERS

1) Stearic acids; 2) Nickel; 3) C17H35C4) Glycerol, fatty acids; 5) Tribromo lanil ide; 6) Ca3(PO4)2; 7) C17H29COOHydrog enation; 9) They react with hardions but do not form precipitate; 10) 11) C11H23 COOH; 12) C17H33COOFish oil/ cod liver oil; 14) Vegetable oC17H33COONa; 16) Grease; 17) Saponon; 18) 3,4,5 tribromo salicylanilide; 19thanol ammonium; 20) Glycerol.



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UNIT - 10

Question paper analysis.. Match the following

3. What is a detergent? (March 2002, June 00)4. What is saponification? (June 2005, March

2002)

CHEMISTRY AND INDUSTRY

1. Glass - blowing is possible with _____.(June 06, March 02, )

2. Chromophore _____.3. Drugs which act on blood circulation are

_____. (April 08, June 07)4. Among KCl, NH4Cl, KNO3 and Nitrophosk

_____ is the mixed fertilizer. (June 2008)5. The type of glass used for making bottle is

_____. (Sept 1999)6. The first Synthetic dye prepared by the sci-

entist _____. (June 2003)

7. The process of cooling glass is called_____. (June 07, 03, March 09, 07, 06, 01)

8. Cold cream is an _____ of oil and water(June 2008, March 2006)

9. The chemical composition of Talc is _____(June 05, 01)

10. Raw materials for preparation of glass aresoda - ash, limestone and _____. (March2000)

11. 2Na3PO4 + 3CaCl2 6NaCl + _____(March 2000)

12. The type of glass used for manufacture oflaboratory glass was _____.(April 2008,June 2002)

13. _____ hold materials together by surfaceattachment.

14. Cooking gas is a mixture of butane, propeneand propane compressed to liquid formcalled _____. (March 2005)

15. _____ is used as refrigerator lining.16. Cullet is _____ (March 10)17. Cement is a mixture of calcium silicate and

_____18. Micronutrient of plants are _____.19. Ceramics are products made from clay,

felspar and _____.20. Pottery or Terra-Cotta is product of porous

nature such as _____.21. Adhesives hold solid materials together by

_____ attachment.22. Cold cream mainly contains almond oil,

bees-wax and _____.

23. Chromophore and auxochrome are twogroups that must be present in _____.

24. Urea formaldehyde, epoxy resins and sili-cons are some _____ adhesives.

25. _____ gives blue colour to the glass. (June08, 07

CHEMISTRY AND INDUSTRY

Important Questions

5 Marks

1. Draw the sketch of refining of petroleum?

4 Marks

1. Describe the manufacture of cement?(March 2010)

2. Write short notes on pottery and earthen-ware?(March 07 June 2001)

3. What are fertilizers? Give their types withexamples?(March 99)

4. What is a drug? What are the requisites ofan ideal drug? (June 06, March 03, Oct 99)

5. What is a drug? Classify drugs dependingupon their therapatic action?(Mar. 04, 00)

6. List out the sources of drugs?(Oct. 1999)7. Sketch the structure of Aspirin &

Paracetamol?

2 Marks

1. Describe briefly cold cream and face pow-der mentioning their ingredients?

2. What are cosmetics? (march 2005)3. What are the uses of cold-cream?4. Write short notes on synthetic adhesives -

uses?(June 2001)5. Give a list of different types of adhesives,

their properties and uses? (June 2001)

1 Mark

1. Why do shaving soaps give slow dryinglather? (March 2000)

2. Mention the methods of manufacture ofcement? (March 2006)

3. What is the use of adding cullet to the rawmaterials of glass? (March 09, 08, June 07)

4. What is a plastic? (June 2008)5. Define adhesive? (March 04)6. Name two chromophores? (June 04)7. What are pharmaceuticals? (March 2005)8. What are primary nutrients? (March 06)9. What is annealing? (March 07, June 05)10. What is the use of Micro-fertilizers?11. What does L.P.G. consists of? (March 2005)12. What are called glass-gall?13. What is glass blowing?14. With which glasses the glass-blowing is

possible?

ANSWERS1) PYREX GLASS; 2) Chromophore and aux-ochrome; 3) Cardio-Vascular; 4) Nitrophosk;5) Soda glass; 6) W.H.PERKIN; 7) Annealing;8) Emulsions; 9) Magnesium Silicate; 10)Sand; 11) Ca3(PO4)2; 12) BOROSILICATE;13) Adhesives; 14) LPG; 15) Polysterin; 16)Some broken glass; 17) Calcium aluminate;18) B, Cu, Mn, Zn Fe; 19) Sand; 20) Pots,Jugs; 21) Surface; 22) Rosewater; 23) Dye;24) Synthetic; 25) CuSO4

Analysis Based On Last Six years Question PapersCHEMISTRY

Chapter Jun 10 Mar 10 Mar 09 Mar 08 Mar 07 Mar 06 Mar

Atomic Structure 7 7 3 7 7 7 7Chemical Bond 6 6 6 6 6 6 2Periodic classificationof Elements - 4 4 4 4 4 4Alkaline Earth Metals 1 1 1Solutions 2 2 4 2 2 2 2Acids, Bases and Salts 1 2 1 1 1 1 1Chemistry ofCarbon compounds 3 3 2 3 3 4 3Carbohydrates, protiens 5 5 6 5 5 5 5Oils and Fats 4 4 4 4 4 4Chemistry and Industry 4 8 6 5 3 4 4

PHYSICSChapter Jun 10 Mar 10 Mar 09 Mar 08 Mar 07 Mar 06 Mar

Measurement of length 5 5 4 5 5 - 5Our Universe and

Gravitation 1 1 1 1 1 2Kinematics 2 1 1 1 1 Dynamics 2 1 5 2 2 2 2Electro magnetic spectrum 1 1 1 1 5 1Sound 1 2 4 1 2 2 1Light 4 4 2 4 4 4 4Magnetism 3 2 8 3 2 3 3Current Electricity 4 6 1 6 7 4 1Modern Physics 7 7 5 7 7 8 7Electronics 8 6 7 6 6 8 8

MATCH THE FOLLOWING

PHYSICS CHEMISTR

Group A Group B

1. -particle [ ] A) Negative charge2. -partic le [ ] B) Number of Protons3. -particle [ ] C) Diffe ren t number

of Protons4. Atomic number [ ] D) Positive charge5. Mass number [ ] E) Electrically neutral

F) Total number ofProtons & Neutrons

Answers:

1) D; 2) A; 3) E; 4) B; 5) F

Group A Group B

1. Atomic Number[ ] A) Stability of atom2. Mass Defeet [ ] B) amu3. Mass Number [ ] C) Number of

Protons4. Units of [ ] D) ev

atomic mass5. Unit of energy [ ] E) Sum of the

number of Protonsand Neutrons

Answers:

1) C; 2) A; 3) E; 4) B; 5) D

Group A Group B

1. -OH [ ] A) Aldehyde2. -CHO [ ] B) Amine3. -COOH [ ] C) Alcohol4. -NH2 [ ] D) Ester5. -COOR [ ] E) Acid

F) EtherAnswers: 1) C; 2) A; 3) E; 4) B; 5) D

Group A Group B

1. Methane [ ] A) C2H62. Ethane [ ] B) C2H2

3. Propane [ ] C) C2H44. Ethylene [ ] D) C3H85. Acetylene [ ] E) CH4Answers: 1) E; 2) A; 3) D; 4) C; 5) B

Group A Group B

1. KETONE [ ] A) CH3OH2. ESTER [ ] B) CH3CHO3. AMINE [ ] C) CH3COCH34. ALDEHYDES [ ] D) CH3NH25. ALCOHOL [ ] E) CH3COOC2H5Answers: 1) C; 2) E; 3) D; 4) B; 5) A



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PHYSICAL SCIENCE POINTS TO REMEMBER

Quick review.. quantity and unitsPHYSICS

Pitch of the Screw =Distance travelled by screwNo. of complete rotations made

Least Count: Pitch of the Screw/No of headscale divisions

Scales - a) Pitch Scale b) Head Scale Error - a) Zero error

b) Positive errorc) negative error

Positive error: If the zeroth division of headscale is below index line.

Negative error: If the zeroth division of headscale is above indexline.

Thickness of a WIRE = P.S.R. + (H.S.RXLC) Newtons Universal law of gravitation

a) F=Gm1m2/r2 G=Fr2/m1m2G = 6.67 x 10-11 Nm2/Kg2

Acceleration due to gravity g = GM/r2

Units for g = m/s2

Generally g = 9.8 m/s2

Value of g - at height gh=g(1-2h/r) at poles- maximumat depth gd= g(1-d/r) at equator - minimum

Theories: a) Geocentric theotry - Ptolemyb) Heliocentric theory - Copernicus.

Motion of a body travelling with a uniform

acceleration

a) v= u + at b) S= ut+1/2 at2

c) v2 - U2 = 2as Motion of a body thrown up word:

a) V= u-gt b) h=ut-1/2gt2 c) v2-u2=-2gh

Motion of a freely falling body:a) v = gt b) h=1/2 gt2 c) v2 = 2gh

Time of Ascen ta = U/g Velocity of a body when it reaches earth

V = 2gh Time of flight T = 2U/g Rotary motion: Moves in a curved path at a

fixed point Circular motion:

a) Centripetal force: centre seaking force ex:Revolution of planetsF= mv2/r = mrw2 - Realforce

Centrifugal force -. Away form the centreex: Laundry drier, CentrifugalF= mv2/r = mrw2

Banking of roads or Banking angle

tan = v2/rg. Velocity of sound V=n= 2v(l2-l1) Progressive waves - longitudinal waves

(Consists Compressions and rarefactions)= distance between two successive com-pressions (or) rare faction () distancebetween successive compression and rarefac-tion in /2

Stationary waves -Nodes, anti nodes.Distance between two successive nodes orantinode is /2. Between node and antinodesis /4

Theories

a) Newton's Corpusclar theory

b) Hygens wave theoryc) Maxwell Electro magnetic theory

Properties of light:

Interference - constructive super positionphase difference 0 (or) 2 = n= n = 0,1,2,3Destructure super position = (2n+1) /2

Diffraction: The bending of wave front whenit meets a obstacle is called diffraction.

Visual Photometry

a) Luminous flux - lumen (lm)b) Solid angle - Steridiansc) Luminous intensity - candela

LASER: Light Amplification by StimulatedEmission of Radiation.

Properties of Laser

1) Coherence 2) Directionality

3) Monochromalicity 4) High intensity Theories: 1) Absorption

2) Spontaneous emission3) Population version means N2>N14) Stimulated emission

Diamagnetic substance

Ex: AIR, Water, BiRelative permeability: r 1magnetic susceptibility: small & positive

Ferro magnetic substances:

Ex: Fe, Co, N1relative permeability: r>>1

magnetic susceptibility: large and postion Electric Circuits

a) current (i) = Charge (q)/time TAmpere = 1 volt/ secb) Pottential diferencev = warkdone (w)/Charge(q)c) Circuites of Batteries

Series E= E1 + E2 Parallel E= E1 > E2 Various Atomic Structures:

a) Thomsons atomic modelb) Leonards atomic modelc) Rutherford's atomic modeld) Bhors model

a.m.u.= Atomic mass unit A=Z+N Einstein's mass- energy equivalence E= mc2

1Mev= 1.6x10-12 Joule's 1 amu=931.4 Radio activity: , ,rays properties Isotopes: 10Ne

2010Ne

2110Ne

22

Isobars: 19K40

19Ca40

Isotones: 14Si31

15P32

Nuclear reactor: a) Moderatorb) Fuel elements c) Control Rods

Fuel Elements: 92U235, 92U

238

Moderator: heavy water Control Rods: Boron, Cadmium rods Classification of solids: a) Insulator

b) Conductors c) Semi conductors Majority charge carriers are the holes Minority charge carriers are electrons

CHEMISTRY Atomic structures:

a) Thomson's model b) Bohr's modelc) Rutherford's model

Quantam number: a) principle quantamnumber (n) = K, L, M, N, .. (or) 1, 2, 3, 4..

Azimuthal quantam number (l) (n-l)= 0, 1,2, 3 or s, p, d, f

Magnetic quantum number (m) (2l+1) if l=2 then -2, -1, 0, +1, +2

Spin quantum number (or) s = +1/2, -1/2copper - [Ar] 4s13d10 Chromium [Ar] 4s13d5

Dobereiner classification - Triads (Li Na K)(S Se, Te) (Cl, Br, I)

Newlonds classification: First and eight ele-ments are similar

Mendeleev's classification: Based on atom-ic weight

Mosley: Based on atomic number Ionic bond: due to transfer of electrons Covalent bond: by sharing of electrons Co-ordinate covalent bond: bond pair elec-

trons Overlapping of orbitals: S-S(H2), S-p(Hcl)

p-p(F2), Double bond (oxygen), Triple bond(N2)

Sigma bond: overlapping along internuclearaxis

Pi () bond: over lapping by sides Shapes of melecules: Linear Co2, Becl2, C2H2 V-shape: H2O Pyramid: Pcl3 PH3 NH3 Trigonal bi pyramidal Pcl5 Reaction of alkaline earth metals

a) oxygen-forms oxides b)water- Hydroxidesc) H2- Hydrides d) Chlorine - chlorides

Type of solutions

a) Saturated solutionsb) Unsaturated solutionsc) Super Saturated solutions

Strong electrolytes - Nacl, NaNO3 Na2SO4 Weak electrolytes- CH3COOH, NH4OH Non electrolytes- Sucrose, Glucoses Allotropy form of carbon: Diamond,

Graphites Hydrocarbons:

a) Saturated- Alkanes CnH2n+2b) Unsaturated- Alkenes CnH2n

Alkynes CnH2n-2 Acids: By dissolving non-metallic oxides in

water acids are produced Bases: By dissoloving metallic oxides in

water Bases are produced Oligosacharoid: Sucrose, Maltose Polysacharoids: Startch, Cellulose Based on taste;

a) Sugar- Glucose, Fructose (Sweat)b) Non-sugars- Cellulose, Startch

Oils: Contains unsaturated Fatty acids Fats: Contains saturated Fatty acids Cement Raw materials: limestone, clay Glass Raw materials: Soda ash, limestone,

Sand Ceramics Raw materials:Clay,Felsp Nutrients:

a) Natural: carbon, Hydrogen, oxygen Primary: Nitrogen, Phosphorous, Pota Secondary: Copper, Sodium, Sulphur Micro: Copper, Molybdynum, Zinc, I

D MSs AOM ^l*ylyl ls S l

UNITSQUANTITY UNIT

G Nm2Kg-2

g m/sec2

Mass (m) Kg (MKS), gm (Weight (w) N(MKS), dyne (Velocity (v) m/secAcceleration (a) m/sec2

Angular displacement() Radian

Angular velocity() Radian/secFrequency HertzSolid angle SteradianLuminous flux () LumenLuminous intensity (I) Candela(or)LumMagnetic pole strength(m) Amp-meter(S.I),

Weber (MKS)Magnetic moment(M) Amp-meter2(S.I)Magnetic induction(B) N/Amp-meter(S.I),

Tesla(or)Weber/m2(

Intensity of magnetic Amp/Meterfield (H)Magnetic flux () WeberMagnetic susceptibility() No unitsPermeability () Henry/meterRelative permeability(

r) No units

Intensity of magnetization(I) Amp/meter

Current (i) AmpereCharge (q) CoulombPotential Difference(V) VoltE.M.F(e) VoltElectrical Resistance(R) Ohm ()Specific resistance() Ohm-meterSpecific heat(

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Bavitha Bhavitha 17.02.2011 EM Physics