Which of the Following Structures Does Glucose Most Commonly Form

Question

Which of the following structures does glucose most commonly form?
A)a pyranose using the hydroxyl group on carbon 4
B)a pyranose using the hydroxyl group on carbon 5
C)a furanose using the hydroxyl group on carbon 3
D)a furanose using the hydroxyl group on carbon 4

Accepted Answer

Glucose most commonly forms a pyranose ring structure by the intramolecular reaction of the hydroxyl group on carbon 5 with the aldehyde group at carbon 1, creating a six-membered ring that resembles the structure of pyran.