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Assertion (A) D(+)- Glucose is dextrorot...

Assertion (A) `D(+)-` Glucose is dextrorotatory in nature.
Reason (R) 'D' represents its dextrorotatory nature.

A

Assertion and reason both are correct statements and reason explains the assertion.

B

Both assertion and reason are wrong statements.

C

Assertion is correct statement and reason is wrong statement.

D

Assertion is wrong statement and reason is correct statement.

Text Solution

Verified by Experts

The correct Answer is:
C
Correct reason . D-suggests that the configuration of the `-OH` at the penultimate carbon is towards right.
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Knowledge Check

  • Assertion : Glucose is correctly named as D-(+)-glucose. ' 3 Reason : ‘D’ before the name of glucose represents its dextrorotatory nature.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

  • A : D-fructose is levorotatory R : D-Glucose is dextrorotatory

    A
    If both Assertion and Reason are true and the reason is the correct explanation of the assertion, then mark (1).
    B
    If both Assertion and Reason are true but the reason is not the correct explanation of the assertion, then mark (2).
    C
    If Assertion is true statement but Reason is false, then mark (3).
    D
    If both Assertion and Reason are false statements, then mark (4).

  • Assertion : D-glucose is dextrorotatory whereas L-glucose is laevorotatory. Reason : D-compounds are always dextro and L-compounds are always laevorotatory

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.