1000+ General Chemistry Multiple Choice Question Answer [Solved]

1. Argyrol used as eye ointment is a solution of
A. hydrogen peroxide
B. silver nitrate
C. tincture iodine
D. m-cresol
Answer : B

2. A light alloy having high tensile strength is
A. German silver
B. solder
C. magnalium
D. bell metal
Answer : C

3. 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

4. The alloy which is extremely hard and resistant to acids is
A. chrome steel
B. silicon steel
C. stainless steel
D. invar
Answer : B

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

6. The soaps used in shaving cream are
A. calcium soaps
B. lead soaps
C. soft soaps
D. hard soaps
Answer : C

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

8. 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

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

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

11. Which of the following is a regenerated fibre?
A. Terylene
B. Rayon
C. Nylon
D. Silk
Answer : B

12. 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

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. An element which is preserved under water is
A. Sodium
B. red phosphorus
C. white phosphorus
D. sulphur
Answer : C

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

16. Solder is an alloy of
A. tin and copper
B. tin and lead
C. tin and zinc
D. tin, copper and zinc
Answer : C

17. The iron salt used in blue prints is
A. ferric sulphate
B. ferric oxalate
C. ferric nitrate
D. ferric chloride
Answer : B

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

19. 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

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

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

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

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

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

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

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

27. Petroleum ether is also known as
A. kerosene
B. naphtha
C. lubricating oil
D. asphalt
Answer : B

28. 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

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

30. Heated saw dust catches fire when a drop of concentrated nitric acid is added to it. This is due to
A. dehydration
B. oxidation
C. reduction
D. dehydrogenation
Answer : B

31. On chemical analysis, a bottle cork is found to contain primarily
A. proteins
B. carbohydrates
C. tannins
D. lipids
Answer : B

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

33. Concrete is a mixture of
A. cement an limestone
B. cement and sand
C. cement and gravel
D. cement, sand and gravel
Answer : D

34. During fermentation, the by-product is
A. ethyl alcohol
B. methyl alcohol
C. carbon monoxide
D. carbon dioxide
Answer : D

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

36. The foul odour of gasoline is due to
A. pyridine
B. hydrogen sulphide
C. cacodyl
D. carbylamines
Answer : B

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

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

39. A metal which exhibits allotropy is
A. cobalt
B. tin
C. manganese
D. platinum
Answer : B

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

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

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

43. PAS is a drug used In the treatment of
A. tuberculosis
B. cancer
C. typhoid
D. malaria
Answer : A

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

45. The alloy added in the preparation of steel contains
A. Fe and C
B. Mn and C
C. Fe and Mn
D. Fe, Mn and C
Answer : D

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

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

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

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

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