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  4. How many of the following groups are ortho, para directing and ring activating? -NO2,-CN,-CH3,-OH,-NH2,-OR,-X,-CHO,-NH-R

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Q. How many of the following groups are ortho, para directing and ring activating?
$-NO_{2},-CN,-CH_{3},-OH,-NH_{2},-OR,-X,-CHO,-NH-R$

NTA AbhyasNTA Abhyas 2022

Solution:

Here $-CH_{3},-OH,-NH_{2}-OR$ and $-NHR$ are ortho, para directing and ring activating also.
$-NO_{2},-CN$ and $-CHO$ are ring deactivating and meta directing.
$-X$ is ring deactivating but ortho, para directing.