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When either form of D-Glucose is dissolv...

When either form of D-Glucose is dissolved In water, the solution gradually changes its optical rotation and finally attains a constant optical rotation of `+52^(@)`.

Which form of D-GIucose is more stable?

A

`alpha`D-Glucose

B

`beta`D-Glucose

C

Open chain

D

All forms are equally stable

Text Solution

Verified by Experts

The correct Answer is:
B
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When either form of D-Glucose is dissolved In water, the solution gradually changes its optical rotation and finally attains a constant optical rotation of +52^(@) . Which of the following statements, is true?

When either form of D-Glucose is dissolved In water, the solution gradually changes its optical rotation and finally attains a constant optical rotation of +52^(@) . What is the percentage of open chain D-Glucose in solution?

Knowledge Check

  • Which of the following when dissolved in water forms a solution,ie, non-conducting ?

    A
    Chile salt petre
    B
    Potash alum
    C
    Green vitriol
    D
    Ethyl alcohol

  • Which of the following when dissolved in water forms a solution,ie, non-conducting ?

    A
    Chile salt petre
    B
    Potash alum
    C
    Green vitriol
    D
    Ethyl alcohol

  • During mutarotation of beta -D-glucose in aqueous solution angle of optical rotation

    A
    Remains constant value of + `111^(@)`
    B
    remains constant value of + `19.2^(@)`
    C
    changes from an angle of `112^(@)` to a constant value of `+52.5^(@)`
    D
    changes from an angle of `19.2^(@)` to a constant value of `+52.5^(@)`

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