RRB Group D - General Chemistry 1000+ MCQ [Solved] PDF Download

1. Solid carbon dioxide is used
A. as a drying agent
B. as a refrigerant
C. as an antiseptic
D. as a bleaching agent
Answer : B

2. The scientist associated with the discovery of the nucleus was
A. Rutherford
B. Moseley
C. Niels Bohr
D. J.J. Thomson
Answer : A

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

4. When ants bite, they inject
A. glacial acetic acid
B. methanol
C. formic acid
D. stearic acid
Answer : C

5. Lead pencils contain
A. white lead
B. graphite
C. red lead
D. coke
Answer : B

6. Vinegar is an aqueous solution of
A. oxalic acid
B. citric acid
C. acetic acid
D. hydrochloric acid
Answer : C

7. Which of the following is used as a food preservative?
A. phenol
B. washing soda
C. absolute alcohol
D. vinegar
Answer : D

8. Artificial diamonds were produced by
A. Moissan
B. Davy
C. Faraday
D. Marie Curie
Answer : A

9. Which of the following types of water gives lather easily with soap?
A. Hard water
B. Heavy water
C. Soft water
D. Both (a) and (b)
Answer : C

10. A substance used both as an explosive and as a germicide is
A. phenol
B. TNT
C. picric acid
D. iodoform
Answer : C

11. Clark's method for removal of temporary hardness in water uses
A. calcium hydroxide
B. washing soda
C. calcium chloride
D. zeolite
Answer : A

12. Dry Ice is
A. solid carbon dioxide
B. liquid oxygen
C. liquid hydrogen
D. liquid. Chlorine
Answer : A

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

14. 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

15. The term 'nucleons' apples to
A. neutrons
B. protons
C. protons and neutrons
D. protons and electrons
Answer : C

16. The compound used in photography is
A. ammonium dichromate
B. copper Sulphate
C. magnesium Sulphate
D. sodium thiosulphate
Answer : D

17. The Combined Gas Law equation is
A. P1V1T1 = P2 V2 T2
B. P1V1T2 = P2V2T1
C. P = P1 + P2 + P3
D. C =
Answer : B

18. Which of the following act a both u oxidising and reducing agent?
A. nitric acid
B. ammonia
C. nitrous acid
D. nitrogen peroxide
Answer : C

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

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

21. High temperature thermometers use
A. sodium amalgam
B. an alloy of sodium and potassium
C. silver amalgam
D. calcium amalgam
Answer : B

22. Invert sugar is
A. sucrose
B. glucose
C. fructose
D. a mixture of glucose and fructose
Answer : D

23. Which or the following electrolysis?
A. Aluminium
B. Copper
C. Zinc
D. Iron
Answer : A

24. Optical instruments are made of
A. pyrex glass
B. flint glass
C. quartz glass
D. Crooke's glass
Answer : C

25. An antipyretic is a drug used
A. in the treatment of malaria
B. to relieve sleepiness
C. to induce sleep
D. to lower body temperature
Answer : D

26. In the nitrogen cycle, denitrifying bacteria
A. oxidise ammonia to nitrates
B. convert nitrogen into ammonia
C. oxidise ammonia to free nitrogen
D. oxidise ammonia to oxides of nitrogen
Answer : C

27. Rooms in places infected by plague are disinfected using
A. bleaching powder
B. iodoform
C. sulphur dioxide
D. chlorine
Answer : C

28. Gasoline is obtained from crude petroleum by
A. fractional distillation
B. fractional crystallisation
C. sublimation
D. evaporation
Answer : A

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

30. Methylated spirit is a mixture of
A. methyl alcohol and acetic acid
B. methyl alcohol and ethyl alcohol
C. ethyl alcohol and pyridine
D. methyl alcohol and pyridine
Answer : B

31. Iron is rendered passive by
A. conc. H2SO4
B. conc. HCl
C. conc. HNO3
D. acetic acid
Answer : C

32. Gold dissolves in aqua regia due to the formation of
A. chloro auric acid
B. auric chloride
C. gold nitrate
D. aurous chloride
Answer : A

33. 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

34. Soda-water contains
A. sodium bicarbonate
B. sodium carbonate
C. carbonic acid
D. sodium hydroxide
Answer : C

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

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

37. A burning substance which continues to burn in a jar of carbon dioxide is
A. zinc
B. red phosphorus
C. magnesium
D. sulphur
Answer : C

38. The substance preserved under water is
A. potassium
B. sodium
C. red phosphorus
D. white phosphorus
Answer : D

39. Diamonds are weighed in
A. grams
B. pounds
C. carats
D. tons
Answer : C

40. Burglar proof safes are made of
A. Tungsten steel
B. Manganese steel
C. Chromium steel
D. Nickel steel
Answer : B

41. Boiler scales' contain
A. calcium carbonate
B. magnesium bicarbonate
C. calcium sulphate
D. magnesium sulphate
Answer : A

42. Tincture iodine is
A. a disinfectant
B. an analgesic
C. a hypnotic
D. a dye
Answer : A

43. Acute diabetes patients smell of
A. acetone
B. ether
C. ethyl alcohol
D. methyl alcohol
Answer : A

44. The principle involved in dialysis, a treatment administered to patients with affected kidneys is
A. Cataphoresis
B. Osmosis
C. Dehydration
D. Diffusion
Answer : B

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

46. Annealing of glass is carried out by
A. rapid cooling
B. rapid heating
C. slow cooling
D. slow heating
Answer : C

47. The substance most abundantly found in sea water is
A. magnesium chloride
B. sodium chloride
C. calcium sulphate
D. potassium chloride
Answer : B

48. Refined petroleum is decolourised by
A. manganese dioxide
B. bauxite
C. animal charcoal
D. quicklime
Answer : B

49. Marsh gas is
A. ethane
B. ethylene
C. acetylene
D. methane
Answer : D

50. Which of the following is a halogen?
A. Radon
B. Astatine
C. Cesium
D. Ruthenium
Answer : B