CMC Vellore, Model Test Papers of Chemistry, Physics, Biology

CMC Vellore

Test Papers of Chemistry, Physics, Biology

Chemistry Model Test Paper

1. The metal used in galvanising iron is:

(A) mercury
(B) bromine
(C) iodine
(D) zinc
(E) chlorine

2. Solvay process is used to prepare

(A) sodium carbonate
(B) sodium bicarbonate
(C) sodium chloride
(D) sodium hydroxide
(E) sodium sulphate

3. Aspirin is

(A) acetic acid
(B) salicylic acid
(C) benzoic acid
(D) acetyl salicylic acid
(E) benzoic salicylic acid

4. When PbO2 is converted into PB (NO3)2 the Pb atom

(A) Loses two protons
(B) Loses two electrons
(C) Gains two protons
(D) Gains two electrons
(E) Does not lose or gain electrons.

5. A sample of gas occupies 100ml at 27o C and 740 mm pressure. The temperature the gas will have, when its volume is changed to 80 ml at 740 mm pressure, is.

(A) 21.6 o C
(B) 240 o C
(C) -33 o C
(D) 89.5 o C
(E) 26.1 o C

6. When benzene is burned in oxygen

(A) a non-luminous, non-sooty flame is observed
(B) a luminous, sooty flames is observed
(C) a luminous, non-sooty flame is observed
(D) a non-luminous, sooty flame is observed
(E) a blue flame is observed.

7. The element which liberates oxygen from water is

(A) Phosphorus
(B) Sodium
(C) Fluorine
(D) Iodine
(E) None of the above

8. When a solution of silver nitrate is added to pure carbon tetrachloride,

(A) a curdy white precipitate soluble in ammonia is obtained
(B) a curdy white precipitate insoluble in ammonia is obtained
(C) chlorine is liberated
(D) a pale yellow precipitate is obtained
(E) no precipitate is formed

9. Carbon tetrachloride is used as

(A) Beverage
(B) Fire extinguisher
(C) Antibiotic
(D) Pain Killer
(E) A fuel for heating

10. Lunar Caustic is

(A) NaOH
(C) AgNO3
(D) AgCl
(E) Pb (NO3)2

Biology Model Test Paper

11. Prop roots are found in

(A) mango trees
(B) tamarind trees
(C) peepul trees
(D) neem trees
(E) banyan trees

12. The number of thoracic vertebrae in man is

(A) 7
(B) 9
(C) 10
(D) 12
(E) 15

13. The first modern theory of evolution was explained by

(A) Charles Darwin
(B) Lamarck
(C) Mendel
(D) T.Weevers
(E) Devries

14. Clear alternation of generation is seen in

(A) ferns
(B) monkeys
(C) mucor
(D) bacteria
(E) viruses

15. Enzymes are made up of

(A) fats
(B) proteins
(C) vitamins
(D) starches
(E) nucleic acids

16. Hypogynous flowers are

(A) flowers with superior ovary
(B) flowers with inferior ovary
(C) flowers with semi-inferior ovary
(D) flowers without ovary
(E) bisexual flowers

17. Corpus callosum is present in the brain of

(A) fishes
(B) birds
(C) snails
(D) mammals
(E) cockroach

18. Absorption of food and water into the body is largely done by

(A) columnar epithelium
(B) connective tissue
(C) squamous epithelium
(D) adipose tissue
(E) hyaline cartilage

19. The flowers of the compositae is

(A) epigynous
(B) perigynous
(C) half perigynous
(D) hypogynous
(E) aromatic

20. Anaerobes are those that

(A) can live in the absence of oxygen
(B) do not utilise gaseous oxygen in their metabolism
(C) use free oxygen only occasionally
(D) prefer to live in darkness
(E) live in air

Physics Model Test Paper

21. Myopia can be corrected by

(A) concave lens
(B) convex lens
(C) cylindrical lens
(D) bifocal lens
(E) biconcave lens

22. The light with the longest wave length is

(A) green light
(B) yellow light
(C) red light
(D) blue light
(E) purple light

23. Nearly how much work can be obtained from 250 calories of heat?

(A) 1045 Joules
(B) 1045 ergs
(C) 10500 Joules
(D) 1045 watts
(E) 1045 kilowatts

24. The smallest amount of electricity is carried by

(A) alpha particle
(B) deuteron
(C) anti-neutron
(D) l-meson
(E) p-meson

25. The frequency of transverse vibrations of a stretched string is

(A) directly proportional to its length
(B) directly proportional to its linear density
(C) inversely proportional to the stretching force
(D) directly proportional to the square root of linear density
(E) none of the above is correct.

26. The moment of a force acting on a body about a point is proportional to

(A) the velocity of the body
(B) the perpendicular distance of the point from the line of action of the force
(C) the time of action of the force on the body
(D) the mass of the body
(E) the perpendicular distance of the centre of gravity from the line of action of force

27. When light enters the eye, the maximum amount of refraction take place at

(A) the cornea
(B) eye lens
(C) vitreous humour
(D) retina
(E) iris

28. A vessel containing water is in equilibrium on a beam balance. When a man puts his finger into the water without touching the bottom or the sides of the vessel, the scale pan on which the vessel stands.

(A) will sink
(B) will rise
(C) will neither rise nor sink
(D) will first rise and then sink
(E) will first sink and then rise

29. The dip at earth’s poles

(A) can only be 0 o
(B) cannot be less than 90 o
(C) can only be 90 o
(D) cannot be greater than 90 o
(E) varies between 0 o and 90 o since the earth rotates about its axis

30. Given three equal resistors how many different combinations of these three resistances can be made?

(A) six
(B) five
(C) four
(D) three
(E) two


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