Question

Which of the following compounds will not give a positive test with Tollens' reagent?

• A.
• B.
• C. $C{H}_{3}C{H}_{2}NH-OH$
• D.

Answer 1

The correct option is D

(a) Benzaldehyde gives a positive Tollens' test.

(b) This compound on hydrolysis produces an aldehyde which gives a positive Tollens' test.

(c) Hydroxyl amines on treatment with warm Tollens' reagent get oxidised to nitroso compound and reduces Tollens' reagent to metallic silver. This reaction is used as a test for nitro compounds and is called the Baker - Mullikens' test.

(d) On hydrolysis, this compound gives ketones which do not answer Tollens' test.