The change in optical rotation,with time,of a | vedclass

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(D) . The change in optical rotation of a freshly prepared solution of sugar with time is known as mutarotation.
$(\alpha-D$-Glucose$) ([\alpha] = +1

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Mutarotation

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(D) . The change in optical rotation of a freshly prepared solution of sugar with time is known as mutarotation.
$(\alpha-D$-Glucose$) ([\alpha] = +112^o, 36\%) \rightleftharpoons$ Equilibrium mixture $([\alpha]_D = +52^o, 0.02\%) \rightleftharpoons$ $(\beta-D-$Glucose$)$ $([\alpha]_D = +19^o, 64\%)$.
Glucose exists in two anomeric forms,$\alpha$ and $\beta$. When either of these pure forms is dissolved in water,it undergoes interconversion until an equilibrium mixture is reached,resulting in a change in the observed optical rotation.

The change in optical rotation,with time,of a freshly prepared solution of sugar is known as

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