COMEDK · Chemistry · 30. Biomolecules

The monosaccharides of maltose is

A \(\alpha\)-D-glucose and \(\alpha\)-D-glucose
B \(\beta\)-D-glucose and \(\alpha\)-D-glucose
C \(\alpha\)-D-glucose and \(\alpha\)-D-fructose
D \(\alpha\)-D-glucose and \(\beta\)-D-fructose

Verified Solution

Answer & Solution

Correct Answer

(A) \(\alpha\)-D-glucose and \(\alpha\)-D-glucose

Step-by-step Solution

Detailed explanation

Maltose is a disaccharide formed by the condensation of two glucose units. The glycosidic linkage in maltose is formed between the C1 of one \(\alpha\)-D-glucose unit and the C4 of another \(\alpha\)-D-glucose unit. Therefore, the constituent monosaccharides of maltose are two…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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