CBSE Class 11 Chemistry Quiz | CBSE Class 11 Chemistry Multiple Choice Questions(MCQs) with Answers

Questions
61 Which metal was first used by man?
A Brass
B Gold
C Aluminium
D Iron

Answer: Aluminium
62 Which among the following gases is used to manufacture chloroform?
A Radon
B Methane
C Propane
D Ether

Answer: Methane
63 Biogas mainly contains
A Methane
B Nitrogen
C Carbon dioxide
D Oxygen

Answer: Methane
64 Which of the following is the hardest element?
A Silicon
B Iron
C Diamond
D Copper

Answer: Diamond
65 The chemical name of bauxite is
A Hydrated aluminium oxide
B Aluminium sulphite
C Aluminium chloride
D Aluminium oxide

Answer: Hydrated aluminium oxide
66 Which of the following metals is in liquid state at normal room temperature?
A Sodium
B Gallium
C Radon
D Silicon

Answer: Gallium
67 What is the chemical name for marble?
A Titanium dioxide
B Calcium bicarbonate
C Potassium nitrate
D Calcium carbonate

Answer: Titanium dioxide
68 Which variety of glass is heat resistant?
A Pyrex glass
B Flint glass
C Hard glass
D Bottle glass

Answer: Pyrex glass
69 In vulcanisation, natural rubber is heated with
A Sulphur
B Phosphorus
C carbon
D Silicon

Answer: Sulphur
70 What are soaps?
A Sodium, salts of heavier fatty acids
B Mixture of glycerol and alcohols
C Esters of heavy fatty acids
D Salts of silicates

Answer: Sodium, salts of heavier fatty acids
71 Which one of the following is an element ?
A Diamond
B Sapphire
C Topaz
D Ruby

Answer: Diamond
72 Which one of the following is correct ? Butter is
A A super cooled oil
B an emulsion
C a molecular solid
D none of these

Answer: an emulsion
73 Quick silver is another name for
A Mercury
B Copper
C Silver
D Aluminium

Answer: Mercury
74 Which one of the following contains maximum percentage of nitrogen by mass?
A Ammonium nitrate
B Ammonium carbonate
C Urea
D Ammonium cyanide

Answer: Urea
75 The National Chemical Laboratory(India) is located in
A Pune
B Hyderabad
C Bengaluru
D Mumbai

Answer: Pune
76 Camphor can easily be purified by the process of
A Sedimentation
B Sublimation
C Distillation
D Crystallization

Answer: Sublimation
77 Broken glass that is used in the manufacture of glass is called
A Cullet
B Waste glass
C Raw material
D Batch

Answer: Waste glass
78 Which one of the following is a protein fibre?
A Silk
B Cotton
C Nylon
D Polyester

Answer: Silk
79 Who was the father of chemistry?
A Cavendish
B Urey
C Robert Boyle
D Lister

Answer: Cavendish
80 What is the most common element in the universe?
A Hydrogen
B Helium
C Oxygen
D Iron

Answer: Hydrogen
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