Question

Which of the following compounds will not show mutarotation:

• A. $\alpha -D(+)$ glucopyranose
• B. $\beta -D(+)$glucopyranose
• C. $\alpha -D(-)$glucopyranose
• D. $\beta -D(-)$glucopyranose

Answer 1

The correct option is C $\alpha -D(-)$glucopyranose

The change in the optical rotation of a solution of either form of glucose until a constant value is obtained is called Mutarotation.