NCERT Class 11 Chemistry General Awareness Questions and Answers

NCERT Class 11 Chemistry General Awareness Questions and Answers NCERT Class 11 Chemistry QUESTIONS

NCERT Class 11 Chemistry General Awareness Questions and Answers

91 Which one among the following is used as a moderator in nuclear reactors?
A Heavy water
B Hydrogen peroxide
C Heavy hydrogen
D Ozone

Answer: Heavy water
92 The concept of ellipitical orbitals was suggested by
A Sommerfeld
B Rutherford
C Neil Bohr
D Thomson

Answer: Sommerfeld
93 DDT is an
A insecticide
B enzyme
C antibiotic
D explosive

Answer: insecticide
94 Which of the following substance is highly plastic?
A Clay
B Granite
C Quartz
D Mica

Answer: Clay
95 Which is used to produce artificial rain?
A silver iodide
B silver nitrate
C copper oxide
D sand

Answer: silver iodide
96 Oil of vitriol is
A sulphuric acid
B phosphoric acid
C hydrochloric acid
D nitric acid

Answer: sulphuric acid
97 Carbon occurs in nature in the purest form as
A Diamond
B Graphite
C Carbon black
D Coal

Answer: Diamond
98 A polymeric substance used to make parachute is
A Viscose
B Terylene
C Rayon
D Cotton

Answer: Viscose
99 Calcium sulphate is known as
A gypsum salt
B potash alum
C epsom salt
D blue vitriol

Answer: gypsum salt
100 Epsom salt is chemically known as
A magnesium sulphate
B copper sulphate
C ferrous sulphate
D copper sulphate

Answer: magnesium sulphate

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