NCERT Class 11 Chemistry Multiple Choice Questions(MCQs) & Answers

NCERT Class 11 Chemistry Multiple Choice Questions(MCQs) & Answers NCERT Class 11 Chemistry QUESTIONS

NCERT Class 11 Chemistry Multiple Choice Questions(MCQs) & Answers

21 The chemical name of bauxite is
A Hydrated aluminium oxide
B Aluminium sulphite
C Aluminium chloride
D Aluminium oxide

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

Answer: Gallium
23 The major constituent of air is
A Nitrogen
B Oxygen
C Carbon dioxide
D Hydrogen

Answer: Nitrogen
24 Which synthetic fibre is known as artificial silk?
A Rayon
B Terylene
C Nylon
D Cotton

Answer: Rayon
25 Which of the following is the source of common salt?
A Halite
B Calcite
C Bauxite
D Pyrite

Answer: Halite
26 The gas that is responsible for global warming is
A Sulphur dioxide
B Carbon dioxide
C Oxygen
D Methane

Answer: Carbon dioxide
27 Tobacco is preserved from drying out in
A glycerol
B ethanol
C glycol
D acetone

Answer: glycerol
28 The chief source of aluminium is
A Feldspar
B Cargolite
C Bauxite
D Haematite

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

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

Answer: Pyrex glass

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