Question

Why Is Fructose Hexose?

Answer 1

• Fructose is distinguished by a five-member ring and six carbons, forming a hexose.

• However, the reactive group on fructose is a ketone group $(-\mathrm{C}=\mathrm{O})$ on carbon number two. As a result, it is referred to as a "ketose" or "ketohexose."