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mutarotation of glucose

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The fact that glucose undergoes mutarotation is best explained by
a. righ flipping between nonequivalent chair conformations by the b-pyranose form.
b. interconversion of the alpha and beta pyranose forms.
c. interconversion of aldehyde and enol forms
d. interconversion of aldehyde and ketone forms
e. equilibration of hemiacetal and lactone forms

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It explains the mutarotation of glucose.

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Mutarotation is the slow spontaneous change in optical rotation observed when a solution of a pure anomer is dissolved in water.

For example, a solution that is made from ...

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