JEE Mains · Chemistry · STD 12 - 10. Biomolecules
Given below are two statements :
Statement I: The two cyclic forms of D-(+)-glucose (α and β anomers differing at C1 hydroxyl orientation) are two anomers of D-(+)-glucose.
Statement II: The open chain forms of D-glucose and D-fructose contain three similar chiral carbons at \(C_3\), \(C_4\) and \(C_5\).
In the light of the above statements, choose the correct answer from the options given below :
- A Both Statement I and Statement II are true
- B Both Statement I and Statement II are false
- C Statement I is true but Statement II is false
- D Statement I is false but Statement II is true
Answer & Solution
Correct Answer
(A) Both Statement I and Statement II are true
Step-by-step Solution
Detailed explanation
Statement I is true because the \(\alpha\) and \(\beta\) forms of D-(+)-glucose are cyclic hemiacetals that differ only in the configuration of the hydroxyl group at C1, which is the anomeric carbon. Such isomers are called anomers. Statement II is true because the open chain…
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