Question
The total number of sp 2 hybridised carbon atoms in the major product P (a non-heterocyclic compound) of the following reaction is
JEE Advanced
Chemistry
Amines
2023
JEE Advanced 2023 (Paper 1)
JEE Advanced Chemistry Question (2023) — Solution
Options
- A. A
- B. B
- C. C
- D. D
Answer
A. A
Step-by-step solution
Lithium aluminium hydride is a strong reducing agent. It reduces cyanide to primary amine with no loss of carbon. Primary amine can undergo nucleophilic addition reaction with acetophenone to produce imine derivative. The carbon with one pi bond are sp 2 hybridised carbon. All the carbon in benzene ring are sp 2 hybridised. Hence, totally 28 sp 2 carbon are present in the molecule.
Related: Chemistry — Amines · All PYQ Banks