Question

When alkyl iodide is treated with large excess of ammonia, the major product obtained is:

• A. Tertiary amine
• B. Quaternary ammonium salt
• C. Secondary amine
• D. Primary amine

Hint:

When excess ammonia is used, primary amine is the major product due to nucleophilic substitution.

Answer 1

The Correct Option is D

When alkyl iodide is treated with excess ammonia, it leads to the formation of a primary amine. The reaction proceeds via nucleophilic substitution, where ammonia (NH$_3$) replaces the iodine atom of the alkyl iodide. In excess ammonia, further substitution can occur to form secondary or tertiary amines, but the major product is the primary amine.