1000+ General Chemistry Multiple Choice Question Answer [Solved]

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

2. 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

3. 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

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

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

6. Which of the following is not a chemical change?
A. Burning of magnesium ribbon in air
B. Distillation of water
C. Heating of cane sugar
D. Setting of cement
Answer : B

7. 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

8. Which of the following is a Bleaching agent?
A. Potassium chlorate
B. Hydrogen peroxide
C. Copper sulphate
D. Silver Nitrate
Answer : B

9. Grape sugar is another name for
A. glucose
B. fructose
C. sucrose
D. maltose
Answer : A

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

11. Rusting is a special case of corrosion applied to
A. nickel
B. tin
C. iron
D. chromium
Answer : C

12. Which of the following represents a physical change?
A. sublimation
B. oxidation
C. reduction
D. decomposition
Answer : A

13. The noble gas which is present in microscopic quantities in air is
A. xenon
B. krypton
C. argon
D. helium
Answer : A

14. 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

15. Which among the following is a metalloid?
A. Tin
B. Silver
C. Iodine
D. Arsenic
Answer : D

16. 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

17. The pure at form of iron is
A. wrought iron
B. steel
C. pig iron
D. nickel steel
Answer : A

18. Rusting is
A. an oxidation process
B. a reduction process
C. a physical change
D. an electro-chemical process
Answer : D

19. The discoverer of chloroform was
A. Liebig
B. Pasteur
C. Bunsen
D. Erlenmeyer
Answer : A

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

21. An acid which is used as a preservative for pickles is
A. hydrochloric acid
B. citric acid
C. tartaric acid
D. acetic acid
Answer : D

22. Glass is a ______ mixture of metallic ______.
A. homogeneous, sulphates
B. heterogeneous, nitrates
C. heterogeneous, carbonates
D. homogeneous, silicates
Answer : D

23. Cupellation is used in the purification of
A. Lead
B. Tin
C. Silver
D. Gold
Answer : C

24. A valuable by-product in the manufacture of soap is
A. stearic acid
B. sodium hydroxide
C. palmitic acid
D. glycerol
Answer : D

25. ________ is left behind after distillation of petroleum.
A. Arsenic
B. Barium
C. Benzene
D. Bitumen
Answer : D

26. An example of thermo setting plastics is
A. bakelite
B. polythene
C. PVC
D. Teflon
Answer : A

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

28. The main constituent of gobar gas is
A. methane
B. nitrogen
C. carbondioxide
D. ethylene
Answer : A

29. 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

30. 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

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

32. Cholesterol is
A. a carbohydrate
B. a protein
C. a lipid
D. a hormone
Answer : C

33. Hard water does not lather well with soap because
A. it contains carbonates of calcium and magnesium
B. it contains sodium chloride
C. it is highly coloured
D. it contains suspended impurities
Answer : A

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

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

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

37. A non-metal which is a good conductor or heat and electricity is
A. iodine
B. sulphur
C. graphite
D. phosphorus
Answer : C

38. The Carbon dioxide is absorbed by
A. Palladium
B. NaCI
C. KOH
D. Dilute H2SO4
Answer : C

39. Metals are usually heavy. A light metal is
A. manganese
B. copper
C. potassium
D. plumbum
Answer : C

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

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

42. What is 'oxygen mixture'?
A. A mixture of potassium nitrate and carbon
B. A mixture of ammonium chloride and sodium nitrate
C. A mixture of potassium chlorate and manganese dioxide
D. A mixture of ammonium nitrate and charcoal
Answer : C

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

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

45. White vitriol is
A. ZnSO4 . 7H2O
B. FeSO4 . 7H2O
C. MgSO4 . 7H2O
D. CaSO4 . 2H2O
Answer : A

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

47. One method by which the components of air can be separated is
A. shaking with caustic soda solution
B. shaking with water
C. fractional distillation of liquid air
D. passing air over heated magnesium
Answer : C

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

49. Harmful bacteria in drinking water cannot be destroyed by
A. chlorination
B. boiling
C. adding caustic soda
D. ozonisation
Answer : C

50. A compound of carbon used as anaesthetic is
A. carbon disulphide
B. carbon tetrachloride
C. phosgene
D. chloroform
Answer : D