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Oxides of Sulphur

Which of the ...

Question

Which of the following aldehydes give red precipitate with Fehling solution?

A

Benzaldehyde

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B

Salicyladehyde

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C

Acetaldehyde

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D

None of the above

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Solution

The correct option is C Acetaldehyde
Only aliphatic aldehydes give red ppt of $C u_{2} O$ with Fehling solution.
$∴$ Only acetaldehyde gives red ppt. with Fehling solution.

Option C is correct.

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