Which of the following pairs give positive Tollen?s test? | Chemistry | SolveeIt | Solveeit

Today, August 20

Question

Which of the following pairs give positive Tollen?s test?

A

Glucose,sucrose

B

Glucose,fructose

C

Hexanal,acetophenone

D

Fructose,sucrose

Answer

Glucose,fructose

Explanation

Solution

Aldehydes and $\alpha$ -hydroxy ketones give positive Tollen's test. Glucose is a polyhydroxy aldehyde and fructose is an $\alpha$ -hydroxy ketone.