How many of the following groups are ortho, para directing and ring activating? - N O 2 , - C N , - C H 3 , - O H , - N H 2 , - O R , - X , - C H O , - N H - R

Step-by-step solution

Here - C H 3 , - O H , - N H 2 - O R and - N H R are ortho, para directing and ring activating also. - N O 2 , - C N and - C H O are ring deactivating and meta directing. - X is ring deactivating but ortho, para directing.