General Chemistry 1000+ MCQ with answer for SSC JE

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

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

3. A non-material kind of pollution is
A. land pollution
B. air pollution
C. noise pollution
D. water pollution
Answer : C

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

5. The neutron was discovered by
A. Chadwick
B. Madam Curie
C. Becquerel
D. Aston
Answer : A

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

7. 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

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

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

10. Graphite la a good conductor of electricity because
A. it is an allotrope of carbon
B. it gives CO2 on heating
C. it contains free electrons
D. it is oxidised to graphitic acid
Answer : C

11. The scientist who synthesised the first organic compound (urea) in the laboratory was
A. Wohler
B. Dalton
C. Lavoisier
D. Fischer
Answer : A

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

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

14. 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

15. Which is the 'odd man' in the following?
A. brass
B. common salt
C. cane sugar
D. water
Answer : A

16. Which of the following la a very good supporter of combustion?
A. Carbon monoxide
B. Oxygen
C. Nitrogen
D. Hydrogen
Answer : B

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

18. Phosgene is a compound of
A. red phosphorus and oxygen
B. white phosphorus and oxygen
C. carbon monoxide and chlorine
D. carbon dioxide and chlorine
Answer : C

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

20. 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

21. Proteins are polymerisation products of
A. aldehydes
B. alkenes
C. amino acids
D. alkynes
Answer : C

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

23. Calamine is a ore of
A. tine
B. magnesium
C. zinc
D. copper
Answer : C

24. 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

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

26. 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

27. The value of Avogadro Number is
A. 6.023 x 1022
B. 1 x 10-14
C. cl 6.056 x 10-6
D. 6.023 x 1023
Answer : D

28. 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

29. Which of the following is not a metal?
A. Lithium
B. Helium
C. Sodium
D. Cobalt
Answer : B

30. 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

31. Carbogen is used in
A. CO2 poisoning
B. CO poisoning
C. phosgene poisoning
D. anesthesia
Answer : B

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

33. 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

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

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

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

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

38. Which of the following is not an alloy of copper?
A. Bronze
B. Brass
C. Solder
D. Gun metal
Answer : C

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

40. Heavy water was discovered by
A. TW Richards
B. FW Aston
C. Stas
D. Urey
Answer : D

41. Which among the following gases present in the air discolours brass nameplates?
A. Hydrogen Sulphide
B. Nitrogen
C. Carbon-di-oxide
D. Oxygen
Answer : C

42. The science which deals with the chemistry of life processes is known as
A. electrochemistry
B. physical chemistry
C. biochemistry
D. tinctorial chemistry
Answer : C

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

44. Isotopes differ in the number of
A. Protons
B. Neutrons
C. Electrons
D. Protons and electrons
Answer : B

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

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

47. Which of the following is called 'the King of Chemicals?
A. Nitric acid
B. Hydrochloric acid
C. Silver nitrate
D. Sulphuric acid
Answer : D

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

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

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