Give reason for the following: Ethyl iodide undergoes S_(N)2 reaction faster-than ethyl bromide.

Give reason for the following: Ethyl iodide undergoes S_(N)2 reaction

1.	Give reason for the following: Ethyl iodide undergoes S_(N)2 reaction faster-than ethyl bromide.
Answer» SOLUTION :Iodide is a better leaving group because of its larger size than BROMIDE, THEREFORE, ETHYL iodide undergoes `S_(N)2` reaction faster than ethyl bromide.