Q. Which of the following compounds will give positive test with Tollens’ reagent?

3203 186 AIPMTAIPMT 1994Aldehydes Ketones and Carboxylic Acids Report Error

A

Acetic acid

7%

B

Acetone

10%

C

Acetamide

8%

D

Acetaldehyde

75%

Solution:

Tollen's reagent is ammonical silver nitrate solution.
Its reacting species is $A g^{+}$ .
It oxidises aliphatic as well as aromatic aldehydes.
$R - C H O + A g^{+} Redox reaction RCOO H + A g$