[Solved] Nitrobenzene Is Subjected To Reduction With Zn Dust And ...

Có thể bạn quan tâm

Concept:

Nitrobenzene is the most important aromatic nitro compound.
In the laboratory, it is prepared by the action of a mixture of concentrated HNO3 and H2SO4 on benzene at 313 - 333K.

F1 Puja Ravi 27.04.21 D11

Nitrobenzene is a pale yellow oily liquid having the smell of bitter almonds.
It is insoluble in water but dissolves readily in ethanol and ether.
It is steam volatile.
It is highly toxic and dangerous since its vapours are absorbed readily through the skin.

Explanation:

Nitrobenzenes can be reduced in the presence of a strongly acidic and as well as neutral medium.
When reduced in presence of a strongly acidic medium such as tin HCl, nitrobenzene forms aniline.

F1 Puja Ravi 27.04.21 D12

When a neutral reducing agent such as zinc dust and aqueous ammonium chloride, forms nitrosobenzene which gets immediately converted to phenylhydroxylamine.

F1 Puja Ravi 27.04.21 D13

Hence, when Nitrobenzene is subjected to reduction with Zn dust and ammonium chloride, the main product is N-phenylhydroxylamine.

Download Solution PDF Share on Whatsapp