Question

Reduction of aromatic nitro compounds using Fe and HCl gives:
A. Aromatic oxime
B. Aromatic hydrocarbon
C. Aromatic primary amine
D. Aromatic amide

Answer 1

Hint: The nitro compounds which are aromatic in nature are generally produced by the process of nitration. This is done by combining two chemicals together which are nitric acid and sulphuric acid which has the tendency to give us an ion. That important ion which further helps us in the nitration process is nitronium.

Complete step by step answer:
We know that the functional group called nitro group has the tendency to get reduced. These compounds are able to constitute more than one nitro functional group in their compounds. The most common known explosophores is considered as a nitro group which is a functional group which tends to make the compound explosive and is used in making explosive substances. It is considered as a strong electron withdrawing group so on reducing it with iron and hydrochloric acid it tends to give us the aromatic primary amine as the product. So the reaction for reducing the nitrobenzene the aromatic compound with iron and hydrochloric acid to give primary aromatic amine with water molecules is the following :

So, the correct answer is Option C.

Note: The reduction of nitroaromatic compounds on a large scale has been done by the method of catalytic hydrogenation. The process of hydrogenation is the reaction which is done chemically between the hydrogen molecule and the other compound. This reaction occurs generally under the presence of the catalyst called palladium.