Correct option is B
The correct chemical structure of
Pinacol is shown in
option (2). Pinacol is a
vicinal diol, specifically
2,3-dimethyl-2,3-butanediol, with the structure:
(CH₃)₂C(OH)–C(OH)(CH₃)₂
It contains two hydroxyl (–OH) groups on adjacent carbon atoms, and each of those carbons is bonded to two methyl groups. This structure fits option (b) perfectly.
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