Correct structure of γ-methylcyclohexane carbaldehyde is :
(A)(see structure)✓ Correct
(B)(see structure)
(C)(see structure)
(D)(see structure)
Answer: (A)
Solution
In γ-methylcyclohexane carbaldehyde, the aldehyde group (–CHO) is attached to carbon-1 of the cyclohexane ring. The γ-position is carbon-3 (counting from the aldehyde carbon as C-1). Therefore, the methyl group is attached to carbon-3 of the cyclohexane ring. Option (A) shows the correct structure with the aldehyde at C-1 and the methyl group at the γ-position (C-3).
JEE Main · 2022 · 29 Jul 2022 · Shift 2 · Single correct option