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Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Biomolecules

Question:

Statement I: Maltose is a reducing sugar which gives two moles of D-glucose on hydrolysis

Statement II: Maltose has a 1, 4-\(\beta\)-glucosidic linkage

Options:

Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I

Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement I

Statement I is correct but Statement II is false

Statement I is false but Statement II is correct

Correct Answer:

Statement I is correct but Statement II is false

Explanation:

The correct answer is (3) Statement I is correct, but Statement II is false.

Statement I:  Maltose is a reducing sugar that gives two moles of D-glucose on hydrolysis.
This statement is correct. Maltose is a reducing sugar because it has a free anomeric carbon in the form of an aldehyde group. Upon hydrolysis, maltose is broken down into two moles of D-glucose.

Statement II:  Maltose has a 1,4-β-glucosidic linkage.
This statement is false. Maltose actually has an α-1,4-glucosidic linkage. The α-1,4 linkage refers to the configuration of the glycosidic bond between the two glucose molecules.

Therefore, the correct answer is: Statement I is correct, but Statement II is false.

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