Hydrocarbons Ques 88

88. The most reactive compound for electrophilic nitration is

[1992]

(a) Benzene

(b) Nitrobenzene

(c) Benzoic acid

(d) Toluene.

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Answer:

Correct Answer: 88.(d)

Solution:

  1. (d) Due to $+ I$-effect of the $CH_3$-group, toluene has much higher electron density in the ring than benzene, Nitrobenzene and benzoic acid.

Nitro and carboxylic group show- $I$-effect and hence deactivate the ring towards electrophillic substutution.