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Byju's Answer
Standard XII
Chemistry
Preparation of Carboxylic Acids
Which of the ...
Question

Which of the following acids can be oxidised by Fehling solution?

A
Malonic acid
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B
Acetic acid
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C
Oxalic acid
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D
Formic acid
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Solution

The correct option is D Formic acid
Fehling's test is a distingushing test of aldehydes and ketones. It selectively oxidises aldehydes over ketone. Since in formic acid instead of alkyl group we have a hydrogen atom. Thus, Fehling's solution oxidises formic acid to carbonic acid.

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