1000+ General Chemistry MCQ for IIFT [Solved]

1. In the process of purification of water for town supply, the substance used to remove bad smell and colour from water is
A. charcoal
B. bleaching powder
C. chlorine
D. carbolic acid
Answer : A

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

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

4. Which one of the following is used in dry cleaning of garments?
A. asphalt
B. naphtha
C. diesel oil
D. lubricating oil
Answer : B

5. 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

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

7. Harmful bacteria in drinking water cannot be destroyed by
A. chlorination
B. boiling
C. adding caustic soda
D. ozonisation
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. Which of the following elements is not required for the healthy growth of plants?
A. Nitrogen
B. Phosphorus
C. Potassium
D. Mercury
Answer : D

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

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

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

13. 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

14. 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

15. Alum is used
A. as an analgesic
B. in the purification of water
C. as a fertilizer
D. as a disinfectant
Answer : B

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

17. Annealing of glass is carried out by
A. rapid cooling
B. rapid heating
C. slow cooling
D. slow heating
Answer : C

18. The number of neutrons in the nucleus of an atom of mass A and atomic number Z is given by
A. A - Z
B. A + Z
C. Z
D. A
Answer : A

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

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

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

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

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

24. 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

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

26. The malarial parasite was discovered by
A. Sir Ronald Ross
B. Sir Francis Haig
C. Dr Jagadish Chandra Bose
D. Sir CV Raman
Answer : A

27. Vinegar is the trade name for
A. chloroform
B. acetic acid
C. phenol
D. carbon tetrachloride
Answer : B

28. Which of the following is a mixture?
A. Baking soda
B. Milk
C. Chloroform
D. Copper wire
Answer : B

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

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

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

32. According to the modern Periodic Law, the properties of elements are periodic functions of their
A. valency
B. atomic mass
C. number of neutrons
D. atomic number
Answer : D

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

34. The main element used in the vulcani-sation of rubber is
A. nickel
B. copper
C. sulphur
D. graphite
Answer : C

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

36. Iodine in alcohol is known as
A. quick lime
B. tincture iodine
C. rectified spirit
D. None of these
Answer : B

37. The fertilizer which has the largest percentage of nitrogen is
A. urea
B. ammonium nitrate
C. ammonium sulphate
D. calcium cyanamide
Answer : A

38. A burning substance which continues to burn in a jar of carbon dioxide is
A. zinc
B. red phosphorus
C. magnesium
D. sulphur
Answer : C

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

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

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

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

43. Which of the following is not an antibiotic?
A. streptomycin
B. terramycin
C. aureomycin
D. codein
Answer : D

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

45. A substance used both as an explosive and as a germicide is
A. phenol
B. TNT
C. picric acid
D. iodoform
Answer : C

46. When ants bite, they inject
A. glacial acetic acid
B. methanol
C. formic acid
D. stearic acid
Answer : C

47. White lead is
A. a basic salt
B. an acid salt
C. a double salt
D. a normal salt
Answer : A

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

49. 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

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