Q31 / 170 · Manipal (MET) 2015 · Chemistry

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

A
Glucose, sucrose
Correct answer
B
Glucose, fractose
C
Hexanal, acetophenone
D
Fractose, sucrose

Solution

Aldehyde and $\alpha$-hydroxy ketones give positive Tollen's test. Glucose has an aldehyde group and fructose is an $\alpha$-hydroxy ketone.

Hence, the correct answer is option: 'B'.

More Aldehydes and Ketones Questions

Which of the following will give positive iodoform test?2018Tests for aldehyde and ketones
The major product in the following reaction is2024Chemical reactions for aldehydes and ketones
Which of the given reaction doesn't able to form benzaldehyde as product?2023Method of preparation for Aldehydes
In the Cannizzaro reaction given below The slowest step is2020Chemical reactions for aldehydes and ketones
Among and , which will undergo Cannizaro's reaction?2019Chemical reactions for aldehydes and ketones
Aldol condensation will not observed in2018Chemical reactions for aldehydes and ketones