Schiff reagent (decolourised magenta) is restored to a pink colour by

Apropanone
Bpropanal
Cdiphenyl ketone
Dethoxyethane

Answer: B

Schiff reagent gives a pink colour with aldehydes; ketones, ethers and diaryl ketones do not restore it. Among the choices only propanal is an aldehyde.

Practice Aldehydes, Ketones and Carboxylic Acids More on Oxidation and reduction of carbonyls (Clemmensen, Wolff-Kishner, Tollens, Fehling)

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