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Question

An organic compound X–– is oxidised by using acidified K2Cr2O7 solution. The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The compound X–– is :

A
2-propanol
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B
ethanal
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C
ethanol
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D
CH3CH2CH3
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Solution

The correct option is A 2-propanol
As the compound does not give silver mirror test, it cannot be an aldehyde, Also it reacts with phenylhydrazine therefore, it has to be a ketone which is obtained only when the compound X is 2propanol.

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