Question

Which of the following groups are ortho-and para-directing?

• A. $-OH$
• B. $-CHO$
• C. $-CN$
• D. $-NHCOC{H}_3$

Answer 1

Answer: (A), (D)

The correct options are
A $-OH$
D $-NHCOC{H}_3$

${\text{- OH and - NHCOCH}}_3\text{are ortho and para}$ directing groups. These are also the electron donating groups and the attack of the incoming groups is at the ortho and para position.