JEE Main levelSingle correct optionDifficulty 2 of 3co124
Ethanal is treated with excess NaOCl in aqueous NaOH. The products are
ACClX4 and HCOONa
BCHClX3 and HCOONa
CCHClX3 and CHX3COONa
DCHX3Cl and HCOONa
Answer: B
Ethanal is trichlorinated at the alpha carbon to CClX3CHO. Hydroxide attacks the carbonyl carbon and expels CClX3X−, giving CHClX3 and sodium methanoate, HCOONa.