Chemistry Class 12 Assamese Medium. We covered all the Chemistry Class 12 Assamese Medium MCQs in this post for free so that you can practice well for the exam.
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Chemistry Class 12 Assamese Medium Objective for Students
Through the reaction of benzene and chlorine in the presence of catalyst say iron, which of the following would be obtained?
(a) Benzene hexachloride
(b) Benzylchloride
(c) Chloro benzene
(d) Benzoyl chloride
Option c - Chloro benzene
The gas produced through the pouring water on the calcium carbide is
(a) methane
(b) ethane
(c) ethylene
(d) acetylene
Option d - acetylene
Which one among the following fuels is used in gas welding?
(a) LPG
(b) Ethylene
(c) Methane
(d) Acetylene
Option d - acetylene
Which one of the following is burned in oxygen, producing a very hot flame, used for welding and cutting metals?
(a) Butane
(b) Methane
(c) Ethylene
(d) Acetylene
Option d - acetylene
Acetylene is used as an anaesthetic under the name of
(a) narcylene
(b) pyrene
(c) neopyrene
(d) pyroline
Option a - narcylene
The Teflon plastic is prepared by the polymerization of
(a) ethylene
(b) acetylene
(c) benzene
(d) tetrafluoro ethylene
Option d - tetrafluoro ethylene
To weld metals together, high temperature required such a high temperature is obtained by burning
(a) acetylene in oxygen.
(b) LPG in oxygen.
(c) methane in oxygen.
(d) acetylene in nitrogen.
Option a - acetylene in oxygen
The pure form of amorphous carbon is
(a) Diamond
(b) graphite
(c) charcoal
(d) fullerene
Option c - charcoal
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