Question

Assertion (A) $Fe + HCl$ is preferred as a reagent in the oxidation of nitroalkanes to alkanamines.
Reason (R) Iron scrap and $HCl$ is preferred in the reduction reaction of nitrobenzene.

• A. Both $A$ and $R$ are correct; $R$ is the correct explanation of $A$
• B. Both $A$ and $R$ are correct; $R$ is not the correct explanation of $A$
• C. $A$ is correct; $R$ is incorrect
• D. $R$ is correct; $A$ is incorrect

Answer 1

Answer: (D)

Reduction of nitro compounds with Fe scrap and $HCl$ is preferred because $FeCl _{2}$ formed gets hydrolysed to release $HCl$ during the reaction. Thus, only a small amount of $HCl$ is required to initiate the reaction.