Question

Assertion:The term anomers of glucose refers to isomers of glucose that differ in configuration at carbon one (C-1).
Reason:Anomers of glucose are cyclic diastereomers differ in configuration are C-1 existing in two forms ${\alpha - }$ and ${\beta -}$ respectively.
(A)- Both assertion and reasons are correct and Reason is the correct explanation for the assertion
(B)- Both assertion and reasons are correct and Reason is not the correct explanation for the assertion
(C)- Assertion is correct but Reason is not correct.
(D)- Both Assertion and Reason are incorrect.

Answer 1

Hint: First of all you should know about the isomers and anomers. So isomers are those species which have the same molecular formula but different arrangement of atoms in the space. And anomers are those isomers which are having different configurations on C-1 or C-2.

Complete step by step answer:
In the statement of the assertion it is given that anomers of glucose are those species which are having different configurations at the first carbon atom of that compound.
And in the statement of reason it is explained very clearly that anomers of glucose are those isomers which are having different configurations at the first carbon atom and they are diastereomers of each other means they have no mirror image of each other. And anomers of glucose are known by the name of ${\alpha - }$ D-glucopyranose and ${\beta - }$ D-glucopyranose which is absolutely true.
So, from the above discussion it is clear that both assertion and reasons are correct and Reason is the correct explanation for the given assertion.

Note:
Here some of you may think that anomers and epimers are the same quantities but that assumption is wrong, because in epimers different configurations may present on any chiral carbon not essentially in first or second carbon.