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Question

Formation of carbon disulfide from carbon and sulfur takes place by


A

absorption of heat

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B

evolution of heat

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C

no change of heat content

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D

None of these

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Solution

The correct option is A

absorption of heat


Explanation:

  • When Carbon (C) in the form of charcoal and Sulfur (S) in the form of vapor is heated at a high temperature, Carbon disulfide (CS2) is formed.
  • The chemical reaction:

C(charcoal)+2S(g)CS2(l)

  • Since Carbon and Sulfur are heated, absorption of heat takes place to form Carbon sulfide (CS2). Since, energy is absorbed in the reaction thus, it is considered as an endothermic reaction.

Final answer:

Hence, option (A) is correct. The formation of carbon disulfide takes place by absorption of heat.


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