Which of the following does NOT reduce Tollens reagent?

A $CH X_{3} CHO$
B $C X_{6} H X_{5} CHO$
C $HCOOH$
D $CH X_{3} COCH X_{3}$

Answer: D

Aldehydes (aliphatic and aromatic) and methanoic acid, which has an aldehyde-like H-C(=O) unit, give a silver mirror. Propanone is a simple ketone and is not oxidised by the mild oxidant in Tollens reagent.

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

Previous questionNext question

Which of the following does NOT reduce Tollens reagent?

Answer: D

More questions on Oxidation and reduction of carbonyls (Clemmensen, Wolff-Kishner, Tollens, Fehling)