Question

Which of the following compounds contain an electron withdrawing group ?

• A.
• B.
• C.
• D.

Answer 1

Answer: (A), (B), (D)

Electron Withdrawing Group (EWG) : Group which withdraws electrons towards itself (generally it is more electronegative than carbon eg. $N{O}_2$, $F,Cl$).

Option A

$-COOH$ is an electron withdrawing group

Option B:

$-Cl$ is an electron withdrawing group

Option D:

$-N{O}_2$ is an electron withdrawing group
Option C does not have any EWG since alkyl groups are electron donating not withdrawing