The reagent with which both acetaldehyde and acetone will react is:

Fehling's reagent

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Grignard reagent

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Tollens' reagent

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None of this

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Solution

The correct option is B Grignard reagent
Fehling's reagent and Tollens' reagent both react with aldehydes and alpha hydroxy ketones. This is the main distingushing test for aldehydes and ketones. Grignard reagent reacts with all carbonyl compounds. Thus Grignard reagent will react with both acetaldehyde and acetone.

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