Consider the above chemical reaction and identify product "A":
(A)(see structure)
(B)(see structure)✓ Correct
(C)(see structure)
(D)(see structure)
Answer: (B)
Solution
Acid-catalysed hydration adds one molecule of water across the C≡N bond of a nitrile and halts at the amide, because the amide is attacked further only on warming with more water. The mild first stage therefore converts cyclohexyl cyanide to its amide, and the second stage, water with acid on heating, hydrolyses that amide to the cyclohexanecarboxylic acid shown. A is cyclohexanecarboxamide.
JEE Main · 2021 · 18 Mar 2021 · Shift 1 · Single correct option
