Question

Classify all the following statements regarding reducing sugars as either true or false.

Note: If any part of this question is answered incorrectly, a single red X will appear indicating that one or more phrases have been placed incorrectly.

Answer 1

Reducing sugar is the one which consists of free aldehyde or ketone group, attached to hemiacetal carbon, in its structure.

The true statements are asfollows:

- Reducing sugarsreduce \(\mathrm{Cu}^{2+}\) to \(\mathrm{Cu}^{+}\) in Benedi ct'sreagent.

- Aldehyde groups are easily oxidized.

- All aldosesarereducing sugars.

- In the presence of Benedict'sreagent, someketoses can bereducing sugars.

Thefalsestatements are asfollows:

- The oxidation of a reducing sugar produces an alcohol.

- Reducing sugarsare sonamed because thesugar isreduced in the reaction with the Benedcit'sreagent.