MolSynapsequestion bank
MolSynapse / Question bank / Aldehydes, Ketones and Carboxylic Acids / Reduction, oxidation and HVZ products of drawn carbonyls and acids
JEE Advanced levelOne or more correct optionsDifficulty 3 of 3co261

Which statements are correct for the aldehyde shown?

  1. AIt gives a silver mirror with Tollens' reagent
  2. BIt gives a red-brown precipitate with Fehling's solution
  3. CIt can undergo self aldol addition in dilute NaOH
  4. DIn concentrated NaOH its main reaction is the Cannizzaro reaction

Answer: A, B, C

The drawn compound is phenylacetaldehyde, an aliphatic aldehyde with alpha-hydrogens. It reduces both Tollens' and Fehling's reagents and can form an enolate for aldol addition. Cannizzaro is characteristic of aldehydes with no alpha-hydrogen, so it is not the main reaction here.
Practice Aldehydes, Ketones and Carboxylic Acids More on Reduction, oxidation and HVZ products of drawn carbonyls and acids
Previous questionNext question

More questions on Reduction, oxidation and HVZ products of drawn carbonyls and acids