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Electrochemical Principles

Electrophile ...

Question

Electrophile $\oplus N O_{2}$ attacks the th in which cases $\oplus N O_{2}$ will attack at meta position.

A

II and IV

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B

I, II and III

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C

II and III

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D

I only

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Solution

The correct option is D I, II and III
$- C C l_{3}, - N O_{2}, - a n d - C H O$ exhibits $- M$ mesomeric effect that causes positive charge on ortho and para positions, therefore in these cases an electrophile can attack only on meta position.

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