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The optical rotation of the alpha-form o...

The optical rotation of the `alpha`-form of a pyranose is `+150.7^(@)`, that of the `beta`-form is `+52.8^(@)`. In solution an equilibrium mixture of these anomers has an optical rotation of `+80.2^(@)`. The precentage of the `alpha`-form in equilibrium mixture is :

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The optical rotation of the a form of a pyranose is +150.7^@ , that of the beta -form is +52.8^@ . In solution an equilibrium mixture of these anomers has an optical rotation of + 80.2^@ . The percentage of the c-form in equilibrium mixture is :

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