Fructose reduces Tollen’s reagent due to

Question

Fructose reduces Tollen’s reagent due to (A) asymmetric carbons (B) primary alcoholic group (C) secondary alcoholic group (D) enolisation of fructose followed by conversion to aldehyde by base

Tardigrade Admin · Accepted Answer

Under alkaline conditions of the reagent, fructose gets converted into a mixture of glucose and mannose (Lobry de Bruyn van Ekenstein rearrangement) both of which contain the -CHO group and hence reduce Tollen’s reagent to give silver mirror test.

Q. Fructose reduces Tollen’s reagent due to

asymmetric carbons

primary alcoholic group

secondary alcoholic group

enolisation of fructose followed by conversion to aldehyde by base

Under alkaline conditions of the reagent, fructose gets converted into a mixture of glucose and mannose (Lobry de Bruyn van Ekenstein rearrangement) both of which contain the -CHO group and hence reduce Tollen’s reagent to give silver mirror test.