1000+ General Chemistry Multiple Choice Question Answer [Solved]

1. Which or the following electrolysis?
A. Aluminium
B. Copper
C. Zinc
D. Iron
Answer : A

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

3. 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

4. Which of the following biology laboratory?
A. Phenol
B. Benzaldehyde
C. Formaldehyde
D. Acetic acid
Answer : C

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

6. The sugar which is used in silvering mirrors is
A. sucrose
B. maltose
C. glucose
D. fructose
Answer : C

7. Clark's method for removal of temporary hardness in water uses
A. calcium hydroxide
B. washing soda
C. calcium chloride
D. zeolite
Answer : A

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

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

10. 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

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

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

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

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

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

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

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

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

19. 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

20. The non-metal which has a shining appearance is
A. sulphur
B. phosphorus
C. iodine
D. bromine
Answer : C

21. Suspended impurities in water are effectively removed by
A. adding milk of lime
B. filtering through sand
C. adding filter alum
D. chlorination
Answer : C

22. Even as early as 3000 BC glass was known to the
A. Europeans
B. Egyptians
C. Asians
D. Americans
Answer : B

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

24. The hormone which absorption is increases glucose oxidation and glucose
A. adrenalin
B. thyroxin
C. insulin
D. epinephrine
Answer : C

25. An example of stimulant fertilizer is
A. gypsum
B. urea
C. potassium nitrate
D. ammonium phosphate
Answer : A

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

27. 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

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

29. The addition of a neutron to the nucleus of an atom
A. increases the atomic mass of the atom
B. decreases the atomic mass of the atom
C. increases the charge on the nucleus
D. decreases the charge on the nucleus
Answer : A

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

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

32. Quick lime has the formula
A. CaO
B. Ca(OH)2
C. NaOH
D. Na2CO3
Answer : A

33. Solid carbon dioxide (Dry ice) is also known as
A. Thiokol
B. Drikold
C. Perhydrol
D. Mannitol
Answer : B

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

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

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

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

38. Iron is rendered passive by
A. conc. H2SO4
B. conc. HCl
C. conc. HNO3
D. acetic acid
Answer : C

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

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

41. A metal which is extracted by thermal reduction is
A. nickel
B. aluminium
C. mercury
D. calcium
Answer : C

42. Stainless steel contains steel and
A. manganese
B. vanadium
C. nickel
D. chromium
Answer : D

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

44. 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

45. The substance preserved under water is
A. potassium
B. sodium
C. red phosphorus
D. white phosphorus
Answer : D

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

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

48. Temporary hardness is due to the presence of
A. calcium carbonate
B. calcium bicarbonate
C. magnesium sulphate
D. calcium sulphate
Answer : B

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

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