1000+ General Chemistry Multiple Choice Question Answer [Solved]

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

2. Oil of winter green contains
A. acetone
B. ether
C. acetic acid
D. methyl salicylate
Answer : D

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

4. The first organic compound prepared in the laboratory was
A. acetic acid
B. chloroform
C. urea
D. methane
Answer : C

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

6. Iron is coated with zinc to prevent rusting. The process is called
A. annealing
B. tempering
C. calcining
D. galvanising
Answer : D

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

8. The vitamin that is found in citrus fruits such as lemon and orange is
A. vitamin C
B. vitamin B2
C. vitamin A
D. vitamin E
Answer : A

9. A drug that is usually administered for malaria is
A. sulphanilamide
B. quinine
C. methicillin
D. novocaine
Answer : B

10. Water has an unusually high bolling point because
A. its molecular weight is low
B. it is denser than ice
C. it is a good solvent for many ionic substances
D. the molecules of water are joined by hydrogen bonds
Answer : D

11. 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

12. Ozone is an allotrope of Oxygen, containing ______ atom/s of oxygen per molecule instead of two.
A. three
B. four
C. one
D. five
Answer : A

13. Which among the following is a local anaesthetic?
A. Chloroform
B. Morphine
C. Streptomycin
D. Cocaine
Answer : D

14. Brass contains
A. copper and tin
B. aluminium and magnesium
C. copper and zinc
D. copper, tin and zinc
Answer : C

15. 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

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

17. Which of the following is used in fuel to propel rockets?
A. Petrol
B. Kerosene
C. Hydrazine
D. Alcohol
Answer : C

18. Colour blindness is
A. a congenital disease
B. a communicable disease
C. an acquired disease
D. a contagious disease
Answer : A

19. The gas used in balloons in the place of hydrogen is
A. nitrogen
B. helium
C. neon
D. argon
Answer : B

20. Two or more entirely different compounds having the same molecular formula are known as
A. isobars
B. isotopes
C. isomorphs
D. isomers
Answer : D

21. 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

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

23. Which of the following process involves removal of the elements of water?
A. Hydrolysis
B. Hydrogenation
C. Dehydration
D. Dehydrogenation
Answer : C

24. The compound or nitrogen used in dry cells is
A. ammonia
B. ammonium nitrate
C. ammonium chloride
D. ammonium nitrite
Answer : C

25. Vulcanisation was discovered by
A. Goodyear
B. Wohler
C. Baeyer
D. Perkin
Answer : A

26. The Long Form of the Periodic Table is based on
A. atomic number
B. valency
C. atomic mass
D. atomic radius
Answer : A

27. 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

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

29. 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

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

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

32. Fructose is also called
A. dextrose
B. fruit sugar
C. beet sugar
D. blood sugar
Answer : B

33. The chemical name of aspirin is
A. acetamide phenol
B. malonyl urea
C. aminosalicylic acid
D. acetyl salicylic acid
Answer : D

34. Which of the following metals is the best conductor of heat and electricity?
A. Aluminium
B. Silver
C. Copper
D. Magnesium
Answer : B

35. A hormone which contains iodine is
A. adrenalin
B. glucagon
C. epinephrin
D. thyroxin
Answer : D

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

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

38. Nylon is made from
A. terephthalic acid and ethylene glycol
B. hexamethylene diamine and adipic acid
C. cellulose nitrate
D. cellulose acetate
Answer : B

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

40. The percentage of silver in German silver is
A. ten
B. twenty
C. zero
D. fifty
Answer : C

41. Which among the following is a solid non-metal?
A. chlorine
B. mercury
C. water
D. iodine
Answer : D

42. The depletion of the ozone layer in the upper atmosphere is due to -extensive use of
A. dichloro-phenoxy-acetic acid
B. superphosphate of lime
C. chlorofluorocarbons (CFC)
D. dichloro-diphenyl-trichloro-ethane
Answer : C

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

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

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

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

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

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

49. Galvanised iron sheets are protected from rusting due to the presence of a layer of
A. lead
B. chromium
C. zinc
D. tin
Answer : C

50. An important use of nitrous acid is in
A. the manufacture of explosives
B. the manufacture of dyes
C. refrigerators
D. the preparation of drugs
Answer : B