Which of the following terms refers to a cyclic hemiacetal with a 6-membered,oxygen-containing ring?
A)aldehyde
B)pyranose
C)ketopentose
D)furanose

Question

Quizplus · Accepted Answer

A pyranose is a cyclic hemiacetal with a 6-membered, oxygen-containing ring. Aldehydes and ketopentoses are not cyclic hemiacetals, and a furanose is a cyclic hemiacetal with a 5-membered, oxygen-containing ring.

Which of the Following Terms Refers to a Cyclic Hemiacetal