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Question

Which of the following on oxidation gives ketone?

A
CH3CH2CH2OH
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B
CH3CH2OH
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C
CH3CH(OH)CHCH3
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D
CH3CH(OH)CH2OH
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Solution

The correct options are
C CH3CH(OH)CH2OH
D CH3CH(OH)CHCH3
The oxidation of secondary alcohols gives ketones. Thus, the oxidation of the compounds of options C and D gives ketones.
However, if the hydroxyl group is present on the terminal carbon atom (primary alcohol) then the oxidation will result in an aldehyde. Thus the compounds of options A and B on oxidation will give aldehyde.

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