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Question

An organic compound undergoes addition reactions and gives a red color precipitate with ammonical cuprous chloride. Therefore, the organic compound could be:​

A
Ethane ​
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B
Ethene ​
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C
Ethanol​
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D
Ethyne​
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Solution

The correct option is D Ethyne​
Answer- (iii) Ethyne​
The compound which reacts with ammonical cuprous chloride and produces a red precipitate is ethyne. ​

Ethyne is treated with ammonical cuprous chloride gives acetylide (CuCCCu). ​

This acetylide is red in color.​


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