Question

Fructose gives silver mirror test with Tollen's reagent. It shows the presence of

• A. Asymmetric carbons
• B. $\alpha$-hydroxy ketones
• C. aldehyde group
• D. All of the above.

Answer 1

The correct option is B $\alpha$-hydroxy ketones

Aldehydes and $\alpha$-hydroxy ketones give positive Tollen's test. fructose is a $\alpha$-hydroxy ketone, so it give positive Tollen's test.
Hence, (d) is correct.