NCERT Class 11 Chemistry Question bank and Answers

NCERT Class 11 Chemistry Question bank and Answers NCERT Class 11 Chemistry QUESTIONS

NCERT Class 11 Chemistry Question bank and Answers

101 The alcohol used in the preparation of dynamite is
A ethyl alcohol
B glycerol
C methyl alcohol
D glycol

Answer: glycerol
102 Which variety of coal contains the highest percentage of carbon?
A Lignite
B Peat
C Anthracite
D Bituminous

Answer: Anthracite
103 The oxide of Nitrogen used in medicine as anaesthetic is
A Nitrogen pentoxide
B Nitrous oxide
C Nitrogen dioxide
D Nitric oxide

Answer: Nitrogen pentoxide
104 The element used in lead pencils is
A carbon
B tin
C zinc
D lead

Answer: carbon
105 Bagasse, a by-product of sugar manufacturing industry is used for the production of
A Nylon
B Alcohol
C Paper
D Glass

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

Answer: Rayon
107 Bleaching action of chlorine is by
A oxidation
B reduction
C decomposition
D hydrolysis

Answer: decomposition
108 Which one of the following metals is found in plaster of paris?
A Sodium
B Calcium
C Magnesium
D Pottasium

Answer: Calcium
109 Mixture of which one of the following pairs of gases is the causes of occurance of most of the explosion in mines?
A Methane and air
B Carbon dioxide and methane
C Hydrogen and oxygen
D oxygen and acetylene

Answer: Methane and air
110 Which one of the following is used as a mordant in dying and tanning industry?
A Magnesium sulphate
B Magnesium chloride
C Magnesium oxide
D Magnesium carbonate

Answer: Magnesium sulphate

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