Which compound can reduce Fehling reagent?

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Question

(B) Fehling reagent is a mild oxidizing agent that is used to distinguish between aliphatic aldehydes and ketones.Aliphatic aldehydes,such as $CH_3CHO

Vedclass · Accepted Answer

Acetaldehyde

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(B) Fehling reagent is a mild oxidizing agent that is used to distinguish between aliphatic aldehydes and ketones.Aliphatic aldehydes,such as $CH_3CHO$ (Acetaldehyde),are easily oxidized by Fehling reagent to their corresponding carboxylate ions,resulting in a reddish-brown precipitate of $Cu_2O$.Ketones (like Acetophenone and Acetone) and aromatic aldehydes (like Benzaldehyde) do not reduce Fehling reagent.Therefore,the correct answer is $B$ (Acetaldehyde).

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