MHT CET 2022 Chemistry question

Identify Finkelstein reaction from the following.

(A)
(B)Correct
(C)C_2H_5Cl + NaOH \longrightarrow C_2H_5OH + NaCl
(D)C_2H_5Cl + KCN \xrightarrow[(alc.)]{\Delta} C_2H_5CN + KCl

Answer: (B)

Solution

The Finkelstein reaction is the halogen exchange in which an alkyl chloride or bromide is heated with sodium iodide in dry acetone to give the alkyl iodide: . NaCl is insoluble in acetone and precipitates,

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Question ID VK-093533