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

Question

How many of the following groups are ortho, para directing and ring activating? -NO2,-CN,-CH3,-OH,-NH2,-OR,-X,-CHO,-NH-R (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

Here -CH3,-OH,-NH2-OR and -NHR are ortho, para directing and ring activating also. -NO2,-CN and -CHO are ring deactivating and meta directing. -X is ring deactivating but ortho, para directing.

Q. How many of the following groups are ortho, para directing and ring activating?
$- N O_{2}, - CN, - C H_{3}, - O H, - N H_{2}, - OR, - X, - C H O, - N H - R$

Here $- C H_{3}, - O H, - N H_{2} - OR$ and $- N H R$ are ortho, para directing and ring activating also.
$- N O_{2}, - CN$ and $- C H O$ are ring deactivating and meta directing.
$- X$ is ring deactivating but ortho, para directing.

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

Here −CH3​,−OH,−NH2​−OR and −NHR are ortho, para directing and ring activating also. −NO2​,−CN and −CHO are ring deactivating and meta directing. −X is ring deactivating but ortho, para directing.

Q. How many of the following groups are ortho, para directing and ring activating?
$- N O_{2}, - CN, - C H_{3}, - O H, - N H_{2}, - OR, - X, - C H O, - N H - R$

Here $- C H_{3}, - O H, - N H_{2} - OR$ and $- N H R$ are ortho, para directing and ring activating also.
$- N O_{2}, - CN$ and $- C H O$ are ring deactivating and meta directing.
$- X$ is ring deactivating but ortho, para directing.