Carbanion stability of rings containing - m groups like no2 will be most stable when - M group is at at 1)ortho 2)para 3) meta

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Assertion (A): - $N O_{2}$ group is benzene ring deactivating and m - directing group

Reason (R): - $N O_{2}$ group with draws electron density from benzene ring and makes ortho and para positions more electron deficient than meta position

Q. Ethyl group

(- C H_{2} C H_{3})

in ethylbenzene increases electron density at which of the following positions?

Q. Assertion :The second substituent may enter the mono-substituted benzene ring at either ortho, para or at meta position. Reason: The position of the incoming group is determined by the nature of the group present in monosubstituted benzene ring.

Assertion (A): - $N O_{2}$ group is benzene ring deactivating and m - directing group

Reason (R): - $N O_{2}$ group with draws electron density from benzene ring and makes ortho and para positions more electron deficient than meta position

Q. Which of the following group(s) when attached to a benzene ring decreases the electron density at ortho/para positions?

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