Which of the following compounds will react with Tollen's reagent ?
A
CH3COCH3
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B
HCOOH
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C
CH3−COOH
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D
CH3CH2CH3
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Solution
The correct option is BHCOOH Tollen's reagent oxidizes an aldehyde into the corresponding carboxylic acid but do not respond to ketone and alkane.
Formic acid give Tollens' and Fehling's tests while other carboxylic acids do not due to the presence of aldehyde bond that can be oxidized further in the presence of mild oxidizing agents like Tollens' and Fehling's reagents. Thus correct option is (b).