RBI Assistant - General Chemistry 1000+ MCQ [Solved] PDF Download

1. LSD is
A. an anaesthetic
B. a psychedelic drug
C. an antipyretic
D. an antibiotic
Answer : B

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

3. The main element used in the vulcani-sation of rubber is
A. nickel
B. copper
C. sulphur
D. graphite
Answer : C

4. 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

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

6. Which of the following is not a supporter of combustion?
A. Oxygen
B. Air
C. Hydrogen
D. Chlorine
Answer : C

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

8. The earliest name given to nitrogen was
A. dephlogisticated air
B. azote
C. inflammable air
D. marine acid air
Answer : B

9. Copper is purified by
A. poling
B. tempering
C. calcination
D. galvanising
Answer : A

10. Hypo' is
A. sodium nitrate
B. Potassium nitrate
C. sodium thiosulphate
D. ammonium chloride
Answer : C

11. 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

12. In photography, the compound or nitrogen used is
A. Potassium nitrate
B. Silver nitrate
C. Ammonium carbonate
D. Ammonium bicarbonate
Answer : B

13. Jeweller's rouge is
A. magnetic oxide of iron
B. ferric oxide
C. ferrous oxide
D. ferrous carbonate
Answer : B

14. A compound used both as a fungicide and as a disinfectant is
A. chlorine
B. carbon monoxide
C. sulphur dioxide
D. o-cresol
Answer : C

15. Gases have
A. a definite shape but not volume
B. a definite volume and shape
C. a definite volume but not shape
D. neither definite volume nor shape
Answer : D

16. Mortar contains cement and sand in the ratio of
A. 1 : 1
B. 1 : 2
C. 2 : 3
D. 1 : 3
Answer : D

17. The most abundant constituent in air is
A. hydrogen
B. nitrogen
C. oxygen
D. noble gases
Answer : B

18. Which of the following statements regarding natural radioactivity is true?
A. It is spontaneous disintegration of atoms
B. It is induced by bombardment with projectiles
C. It is transmutation of atoms with projectiles
D. It is dependent on temperature
Answer : A

19. Triple Antigen treatment for children is to ward off
A. whooping cough
B. tetanus
C. diphtheria
D. All the three
Answer : D

20. The most abundant noble gas present in air is
A. neon
B. argon
C. helium
D. krypton
Answer : B

21. Which of the following cannot be used as fuel?
A. Gasoline
B. Kerosene
C. Sulphuric acid
D. Alcohol
Answer : C

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

23. The ore of iron is
A. Dolomite
B. Magnetite
C. Bauxite
D. Anglesite
Answer : B

24. Which or the following gases is soluble in water and Is collected by the downward displacement or air?
A. Carbon dioxide
B. Sulphur dioxide
C. Ammonia
D. Hydrogen
Answer : C

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

26. The atomic number of an element represents
A. number of neutrons in the nucleus
B. number of protons and neutrons in the nucleus
C. the valency of the element
D. number of protons in the nucleus
Answer : D

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

28. Compounds containing only carbon and hydrogen are called
A. carbohydrates
B. carbides
C. hydrocarbons
D. carbonyls
Answer : C

29. The earliest known acid is
A. nitric acid
B. oxalic acid
C. carbonic acid
D. acetic acid
Answer : D

30. Riboflavin deficiency causes
A. tongue inflammation
B. pellagra
C. night blindness
D. anaemia
Answer : A

31. Which of the following is not a food material?
A. silicate
B. protein
C. fat
D. carbohydrate
Answer : A

32. An essential condition for rusting is
A. high temperature
B. light
C. moisture
D. dry air
Answer : C

33. Calomel is
A. lead chloride
B. mercurous chloride
C. mercuric chloride
D. calcium sulphate
Answer : B

34. Ethyl alcohol is
A. a deliquescent substance
B. an efflorescent substance
C. a hygroscopic substance
D. a dehydrating substance
Answer : C

35. Dust particles in the air of large industrial cities are removed by
A. Sedimentation
B. Electrophoresis
C. Tyndall effect
D. Brownian movement
Answer : B

36. Which of the following is an essential constituent of acids?
A. Oxygen
B. Nitrogen
C. Hydrogen
D. Chlorine
Answer : C

37. Which one of the following is present in the largest amount in terms of per cent by mass in the earth's crust?
A. Silicon
B. Oxygen
C. Carbon
D. Calcium
Answer : B

38. The modern system of symbols was evolved by
A. Dalton
B. Cavendish
C. Avogadro
D. Berzelius
Answer : D

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

40. Which one of the following metals is used to extract another metal?
A. Lead
B. Tin
C. Zinc
D. Aluminium
Answer : D

41. Which of the following is not a physical change?
A. Distillation of water
B. Action of heat on potassium chlorate
C. Powdering of glass
D. Burning of an electric lamp
Answer : B

42. A metal which occurs 'free' in nature is
A. gold
B. zinc
C. tin
D. molybdenum
Answer : A

43. Alum is used
A. as an analgesic
B. in the purification of water
C. as a fertilizer
D. as a disinfectant
Answer : B

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

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

46. The compounds produced by plants in the process of photosynthesis are
A. carbohydrates
B. proteins
C. salts
D. fats
Answer : A

47. Leakage in Liquefied Petroleum Gas (LPG) cylinders is easily detected by adding
A. mercaptans
B. propylene
C. carbon disulphide
D. phosgene
Answer : A

48. The freezing point of water at 760 mm pressure is
A. 273 K
B. 0 K
C. 273°C
D. -273°C
Answer : A

49. A form of carbon which is a good lubricant is
A. diamond
B. coke
C. graphite
D. charcoal
Answer : C

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