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Chemistry Class 12 Assamese Medium

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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

We covered all the chemistry class 12 Assamese medium mcqs above in this post for free so that you can practice well for the exam.

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