How does ketohexose act as a reducing sugar in the Benedict's test?

Answer by  Jalaine11 (2043)

Ketohexose is not a reducing sugar and certain steps have to be taken for the sugar to be reduced in the Benedict's test. Keto sugars become reducing when they converted to an aldehyde. This is done by a chemical that causes oxidation. After this ketohexose becomes a reducing sugar that gives normal reactions with the Benedict's test.

Answer by  crazyrazey (0)

the ketohexose, though not a reducing sugar, in order forit to act as a reducing sugar certain steps have to be taken. These involve hemi-acetal or ketyl hydroxyl groups. Aldehyde form then reduces Copper (II) ions when sugar is oxidized carbonyl group then becomes carboxyl group.

Answer by  royina (1)

what is the composition of ketohexose in a fruit jam?