Question

Fructose is an example of:

• A. Aldopentose
• B. Ketopentose
• C. Ketohexose
• D. Aldoexose

Answer 1

The correct option is C Ketohexose

Fructose in an example of monosaccharide with the molecular formula of $C_6{H}_{12}{O}_6$, it contains hydroxyl group and ketone group. Thus, it has a ketone group with six carbon atoms.

The structure of fructose is

From the above structure, it was known that fructose contains hydroxyl groups and one ketone group.
Ketone is a carbonyl group.

Thus, fructose is an example of ketohexose.