1. Which of the following vitamin is obtained from sunlight?
(A) Vitamin A
(B) Vitamin B(C) Vitamin D
(D) Vitamin C
2. Which substance is mixed to stiffen rubber?
(A) Sulphur
(B) Iron
(C) Calcium
(D) Magnesium
3. What is the chemical name of baking soda?
(A) Sodium carbonate
(B) Sodium bicarbonate
(C) Sodium hydroxide
(D) Sodium chloride
4. Which gas is essential for the process of photosynthesis?
(A) Nitrogen
(B) Hydrogen
(C) Oxygen
(D) Carbon dioxide
5. In sea water which of the following salts is found in the highest quantity?
(A) Calcium chloride
(B) Sodium chloride
(C) Potassium chloride
(D) Potassium permanganate
6. Twinkling of stars is due to the effect of _______.
(A) Refraction of light
(B) Reflection of atmosphere
(C) Refraction of atmosphere
(D) Total internal reflection
7. Which one of the following is not a synthetic fibre?
(A) Cotton
(B) Nylon
(C) Polystyrene
(D) Rayon
8. The process of formation of vapour from solid camphor is called ________.
(A) Freezing
(B) Evaporation
(C) Sublimation
(D) Condensation
9. The particles which are present in the nucleus of the atom are __________.
(A) Proton and electron
(B) Electron and neutron
(C) Proton and neutron
(D) Proton, electron and neutron
10. Which organ is primarily affected from Spondylitis?
(A) Lung
(B) Vertebral column
(C) Kidney
(D) Liver
11. Which type of mirror is used while shaving?
(A) Concave mirror
(B) Convex mirror
(C) Plane mirror
(D) No specific mirror
12. Which metal is used in the filament of bulbs?
(A) Copper
(B) Silicon
(C) Molybdenum
(D) Tungsten
13. The distance between the successive crests of the wave is called as its ___________.
(A) Amplitude
(B) Frequency
(C) Wavelength
(D) Altitude
14. Grey revolution is related to production which of the following?
(A) Oilseeds
(B) Fishes
(C) Pulses
(D) Cereals
15. Who propounded the theory of ‘Purity of Gametes’?
(A) Mendel
(B) Darwin
(C) Lamarck
(D) Hugo de Vries
2. (A) Vulcunisation is a process to make rubber stiff.
3. (B) Sodium bicarbonate is the chemical name of baking soda.
4. (D) In photosynthesis carbon dioxide is used.
5. (B) In sea water, sodium chloride is present in the highest quantity.
6. (D) Twinkling of stars is due to the effect of total internal reflection.
7. (A) All except cotton are synthetic fibres.
8. (C) The process of conversion of camphor directly into vapour is sublimation.
9. (C) Proton and neutron are present in the nucleus of the atom.
10. (B) Spondylitis affects vertebral columns, bones and joints.
11. (A) Concave mirror is used while shaving.
12. (D) Tungsten is used in the filaments of bulbs.
13. (C) The distance between the successive crests of the wave is called as its wavelength.
14. (B) Grey revolution is related to the production of fishes.
15. (A) Theory of ‘Purity of Gametes’ was propounded by Mendel.
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(A) Copper
(B) Silicon
(C) Molybdenum
(D) Tungsten
13. The distance between the successive crests of the wave is called as its ___________.
(A) Amplitude
(B) Frequency
(C) Wavelength
(D) Altitude
14. Grey revolution is related to production which of the following?
(A) Oilseeds
(B) Fishes
(C) Pulses
(D) Cereals
15. Who propounded the theory of ‘Purity of Gametes’?
(A) Mendel
(B) Darwin
(C) Lamarck
(D) Hugo de Vries
Solutions:
1. (C) Sunlight is a rich source of Vitamin D.2. (A) Vulcunisation is a process to make rubber stiff.
3. (B) Sodium bicarbonate is the chemical name of baking soda.
4. (D) In photosynthesis carbon dioxide is used.
5. (B) In sea water, sodium chloride is present in the highest quantity.
6. (D) Twinkling of stars is due to the effect of total internal reflection.
7. (A) All except cotton are synthetic fibres.
8. (C) The process of conversion of camphor directly into vapour is sublimation.
9. (C) Proton and neutron are present in the nucleus of the atom.
10. (B) Spondylitis affects vertebral columns, bones and joints.
11. (A) Concave mirror is used while shaving.
12. (D) Tungsten is used in the filaments of bulbs.
13. (C) The distance between the successive crests of the wave is called as its wavelength.
14. (B) Grey revolution is related to the production of fishes.
15. (A) Theory of ‘Purity of Gametes’ was propounded by Mendel.
==>> Download RRB General Awareness PDF (Including Science)
