Question

If $\alpha -D-glucose$ is dissolved in water and kept for a few hours, the major constituent(s) present in the solution is (are).

• A. $\alpha -D-glucose$
• B. Mixture of $\beta -D-glucose$ and open chain $D-glucose$ open chain $D-glucose$
• C. Open chain $D-glucose$
• D. Mixture of $\alpha -D-glucose$ and $\beta -D-glucose$

Answer 1

The correct option is D Mixture of $\alpha -D-glucose$ and $\beta -D-glucose$

$\alpha -D-glucose\stackrel{H_{2}O}{\to }\beta -D-glucose$
Mutarotation

Mixture of $\alpha -D-glucose$ and $\beta -D-glucose$ present in the solution.