Which of the following alcohols are oxidised to ketones by $PCC$ in $CH X_{2} Cl X_{2}$ ?

Apentan-3-ol
B2-methylbutan-2-ol
Ccyclohexanol
D3-methylbutan-1-ol

Answer: A, C

Only secondary alcohols give ketones. Pentan-3-ol and cyclohexanol are secondary. 2-Methylbutan-2-ol is tertiary and is not oxidised, while 3-methylbutan-1-ol is primary and gives an aldehyde with PCC.

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Answer: A, C

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Which of the following alcohols are oxidised to ketones by $PCC$ in $CH X_{2} Cl X_{2}$ ?