Question

The conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as

• A. Swarts reaction
• B. Finkelstein reaction
• C. Sandmeyer reaction
• D. Stephen reaction

Answer 1

Answer: (B)

Finkelstein reaction

Answer 2

The conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as Finkelstein reaction.
$C _{2} H _{5}- Br + NaI \rightarrow C _{2} H _{5} I + NaBr$
In dry acetone, sodium bromide gets precipitated.