Question

How will you prepare iodoethane from bromoethane?

Answer 1

Iodoethane (C₂H₅I) can be prepared from bromoethane (C₂H₅Br) by halogen exchange, also called the Finkelstein reaction.

\[\ce{\underset{Bromoethane}{CH2H5 - Br} + \underset{Sodium iodide}{NaI} → \underset{Iodoethane}{CH2H5 - I} + \underset{Sodium bromide}{NaBr}}\]