Question

Glucose when heated with \( CH_3OH \) in presence of dry HCl gas gives \( \alpha \)- and \( \beta \)-methyl glucosides because it contains:

• A. An aldehyde group
• B. A \( -CH_3 \) group
• C. A ring structure
• D. Five hydroxyl groups

Hint:

The formation of methyl glucosides involves the reaction of hydroxyl groups with methanol in the presence of a catalyst like HCl.

Answer 1

The Correct Option is D

Glucose contains five hydroxyl groups, which can react with methanol in the presence of HCl to form methyl glucosides.
Final Answer: \[ \boxed{Five hydroxyl groups} \]