Aldehydes Ketones and Carboxylic Acids

Question

Which of the following compounds will give silver mirror with ammoniacal silver nitrate?

A. Formic acid

B. Formaldehyde

C. Benzaldehyde

D. Acetone

Choose the correct answer from the options given below :

Accepted Answer

Option C. The reaction involved here is the Tollen's test, which detects aldehydes and alpha-hydroxy ketones, as they are able to reduce the ammoniacal silver nitrate solution to metallic silver, producing a mirror-like coating on the glassware. This test specifically distinguishes these reducing sugars from non-reducing sugars and is often used to identify the presence of an aldehyde functional group.

More on Aldehydes Ketones and Carboxylic Acids

Aldehydes Ketones and Carboxylic Acids

More on Aldehydes Ketones and Carboxylic Acids