Q. Which factor/s will increase the reactivity of >C=O group? Presence of a group with positive inductive effect. Presence of a group with negative inductive effect. Presence of large alkyl group.
A) Only (i)
B) Only (ii)
C) (i)and(iii)
D) (ii)and (iii)
Explanation
(b)
Carbonyl carbon becomes more reactive towards nucleophilic addition depending upon the magnitude of the positive charge on the carbonyl carbon atom. The introduction of negative inductive effect showing group (-I effect) increases the reactivity while introduction of alkyl group (+I effect) decreases the reactivity. So, large alkyl group decreases the reactivity of > C=O.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.