Question

Select the set of the substituent groups which exert -M and negative inductive effects :

• A. $-CC{l}_3$, $-COOH$, $-CN$
• B. $-C{H}_3$, $-Cl$, $-F$
• C. $-S{O}_{3}H$, $-OC{H}_3$,$-CHO$
• D. $-N{O}_2$, $-COCl,$$-N{H}_2$

Answer 1

The correct option is A $-CC{l}_3$, $-COOH$, $-CN$

$\text{In the following compounds}$

$-{CCl}_3,-COOH,-CN\text{shows or}$

$\text{exert}-M\text{and negative inductive}$

$\text{effect.}$

$\text{-}{CCl}_3\text{shows negative inductive effect}$

$\text{-}COOH\text{shows}-M\text{effect}$

$\text{- CN shows - M effect.}$