General Chemistry 1000+ MCQ with answer for SSC CGL

1. A common rodenticide is (Rat Poison)
A. malathion
B. parathion
C. zinc phosphide
D. diuron
Answer : C

2. The non-metal which is electropositive is
A. chlorine
B. nitrogen
C. sulphur
D. hydrogen
Answer : D

3. The process that takes place in the atom bomb is
A. nuclear' fusion
B. radioactive disintegration
C. nuclear fission
D. chemical decomposition
Answer : C

4. Oxalic acid is used in the manufacture of
A. tincture iodine
B. paints
C. ink
D. aerated water
Answer : C

5. Which of the following elements is not required for the healthy growth of plants?
A. Nitrogen
B. Phosphorus
C. Potassium
D. Mercury
Answer : D

6. The science which deals with the chemistry of life processes is known as
A. electrochemistry
B. physical chemistry
C. biochemistry
D. tinctorial chemistry
Answer : C

7. The metal which reacts most violently with cold water is
A. calcium
B. sodium
C. magnesium
D. potassium
Answer : D

8. A non-metal which is a good conductor of electricity is
A. graphite
B. phosphorus
C. sulphur
D. iodine
Answer : A

9. BHC is a
A. Rodenticide
B. Herbicide
C. Pesticide
D. Fungicide
Answer : C

10. Invar, used for making pendulums is an alloy of steel with
A. tungsten
B. nickel
C. manganese
D. chromium
Answer : B

11. The gas which has a faint sweet odour is
A. nitrogen
B. nitrous oxide
C. nitric oxide
D. nitrogen peroxide
Answer : B

12. A metal which is extracted by thermal reduction is
A. nickel
B. aluminium
C. mercury
D. calcium
Answer : C

13. Sulphur is readily soluble in
A. Water
B. Alcohol
C. Carbon-di-sulphide
D. Sodium chloride solution
Answer : C

14. The commonest ore of aluminium is
A. cryolite
B. bauxite
C. malachite
D. azurite
Answer : B

15. Annealing of glass is done in
A. a cupel
B. a long narrow chamber
C. an open furnace
D. a closed furnace
Answer : B

16. Smelling salt contains
A. ammonium chloride
B. ammonium carbonate
C. ammonium sulphate
D. potassium nitrate
Answer : B

17. The poisonous nature of carbon monoxide is due to
A. cutting off supply of oxygen
B. it™s being converted into carbon dioxide
C. its combination with haemoglobin of blood
D. its blocking of vocal chords
Answer : C

18. Flint glass contains
A. potassium and lead silicates
B. zinc and barium borosilicates
C. potassium and calcium silicates
D. sodium and calcium silicates
Answer : A

19. Reduction involves
A. loss of electrons
B. gain of electrons
C. gain of oxygen
D. removal of hydrogen
Answer : B

20. An example of stimulant fertilizer is
A. gypsum
B. urea
C. potassium nitrate
D. ammonium phosphate
Answer : A

21. Washing soda is
A. sodium hydroxide
B. sodium carbonate
C. sodium bicarbonate
D. potassium chloride
Answer : B

22. The simplest hydrocarbon is
A. benzene
B. methane
C. ethane
D. butane
Answer : B

23. The purest form of carbon is
A. animal charcoal
B. coal
C. wood charcoal
D. sugar charcoal
Answer : D

24. Rayon la made from
A. cotton
B. wool
C. cellulose
D. silk
Answer : C

25. Even as early as 3000 BC glass was known to the
A. Europeans
B. Egyptians
C. Asians
D. Americans
Answer : B

26. One of the ingredients of the paste on the side of a match box is
A. phosphorus pentaoxide
B. phosphorus trichloride
C. phosphorus trisulphide
D. phosphorus trioxide
Answer : C

27. Which one of the following gases is extremely soluble in water?
A. Carbon dioxide
B. Ammonia
C. Chlorine
D. Hydrogen sulphide
Answer : B

28. The artificial silk produced from cellulose is
A. Polyethylene
B. Nylon
C. Terylene
D. Rayon
Answer : D

29. Which of the following can absorb gases quickly?
A. Activated charcoal
B. Anthracite coal
C. Diamond
D. Graphite
Answer : A

30. The name rubber was given by
A. Lavoisier
B. Priestley
C. Dalton
D. Avogadro
Answer : B

31. In the making of jewels, gold is usually mixed with
A. zinc
B. tin
C. copper
D. aluminium
Answer : C

32. The raw materials required for the manufacture of glass are
A. silica, sodium nitrate and soda ash
B. silica, limestone and sodium nitrate
C. silica, sodium oxide and limestone
D. silica, soda ash and limestone
Answer : D

33. The fertilizer which has the largest percentage of nitrogen is
A. urea
B. ammonium nitrate
C. ammonium sulphate
D. calcium cyanamide
Answer : A

34. The best specimen for drinking purposes is
A. rain water
B. river water
C. conductivity water
D. deep well water
Answer : D

35. Which of the following is not a characteristic of potable water?
A. It must be free from suspended impurities
B. It must be free from harmful bacteria
C. It must contain traces of sodium bicarbonate
D. It must have a fishy odour
Answer : D

36. Radium was isolated from
A. galena
B. dolomite
C. sylvine
D. pitchblende
Answer : D

37. The gas evolved when ammonium nitrate is heated is
A. nitrogen
B. nitric oxide
C. nitrogen peroxide
D. nitrous oxide
Answer : D

38. Apart from lead tetra-ethyl, the other compound used as antiknock is
A. n-heptane
B. n-octane
C. iso-heptane
D. iso-octane
Answer : D

39. Which of the following is used as an illuminant?
A. Gasoline
B. Benzoline
C. Kerosene
D. Petroleum ether
Answer : C

40. Coke is a substance obtained
A. from coal mines
B. when wood is burnt in excess of air
C. by heating coal out of contact with air
D. by heating wood out to contact with air
Answer : C

41. Laughing gas is
A. nitric oxide
B. nitrogen peroxide
C. nitrogen pentoxide
D. nitrous oxide
Answer : D

42. The human body contains about
A. 50% water
B. 10% water
C. 70% water
D. 20% water
Answer : C

43. Lunar caustic is
A. calcium sulphate
B. ammonium chloride
C. caustic soda
D. silver nitrate
Answer : D

44. In addition to nitric acid, another acid which may render iron passive is
A. acetic acid
B. oxalic acid
C. chromic acid
D. citric acid
Answer : C

45. The compound of iron used in the manufacture of blue-black ink is
A. ferric chloride
B. ferric sulphate
C. ferric thiocyanate
D. ferrous sulphate
Answer : D

46. Beri-beri is caused by deficiency of Vitamin
A. A
B. C
C. B12
D. B1
Answer : D

47. The oldest known organic compound is
A. urea
B. methane
C. acetic acid
D. benzene
Answer : C

48. Penicillin was discovered by
A. Alexander Fleming
B. Sir JJ Thomson
C. Dr Nessler
D. Sir John Russel
Answer : A

49. A mixture of ethyl alcohol and water can be separated by
A. evaporation
B. sublimation
C. using a separating funnel
D. fractional distillation
Answer : D

50. The formula for cane sugar is
A. C6H12O6
B. C2H5OH
C. C12H22O11
D. C7H8O
Answer : C