See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Sol.     reaction f f H H Products H Reactants          f f H B H A 90 kcal    AITS-PT-III-PCM (Sol.)-JEE(Main)/19 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 11   f f H B H A     f f H C H B 70 kcal      f f H B H C   A C H 20 kcal      f f H C H A   A < C < B