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Question

CH3CHO and CH3COCH3 can not be extinguished by:-

A
Fehling Solution
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B
Grignard reagent
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C
Schiff's reagent
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D
Tollen's reagent
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Solution

The correct option is B Grignard reagent
Fehling solution, Schiff's reagent, tollen's reagent test is given by aldehydes only. Hence, these can distinguish between CH3CHO and CH3COCH3.

However, both CH3CHO and CH3COCH3 react with Grignard reagent.

Here it can not be used to distinguish them.

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