JEE Main 2026 Chemistry question

ChemistryHaloalkanes and HaloarenesJEE Main 2026

A hydrocarbon 'P' () on reaction with HCl gives an optically active compound 'Q' () which on reaction with one mole of ammonia gives compound 'R' (). 'R' on diazotization followed by hydrolysis gives 'S'. Identify P, Q, R and S.

Answer: (3)

Solution

P is but-2-ene giving optically active 2-chlorobutane (Q), which gives 2-aminobutane (R), hydrolyzing to 2-butanol (S).

Question ID VK-000974