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Q.
Which of the following compounds will react with ethanolic KCN?
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Solution:
When ethyl chloride is heated with aqueous alcoholic KCN, ethyl cyanide is obtained. $ {{C}_{2}}{{H}_{2}}Cl+KCN\xrightarrow{\text{Ethanol}}{{C}_{2}}{{H}_{5}}CN $ However ethanolic KCN is also used in the condensation of benzaldehyde but in this reaction, it only acts as a catalyst.