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NEET CHEMISTRYBiomoleculesMedium

Question

Which one of the following compounds shows the presence of an intramolecular hydrogen bond?

A

H2O2\text{H}_2\text{O}_2

B

HCN\text{HCN}

C

Cellulose

D

Concentrated acetic acid

Step-by-Step Solution

Hydrogen bonds can be classified into intermolecular and intramolecular hydrogen bonds . Intermolecular hydrogen bonding occurs between different molecules, as seen in H2O2\text{H}_2\text{O}_2, HCN\text{HCN}, and concentrated acetic acid (which forms dimers due to intermolecular H-bonding) . Intramolecular hydrogen bonding occurs within the same molecule . Cellulose is a long, unbranched polysaccharide composed of glucose units. Its linear chain structure is highly stabilized by extensive intramolecular hydrogen bonds between the hydroxyl groups of one glucose ring and the oxygen atoms of the adjacent ring within the same polymer chain.

Exam Context & Concepts Covered

This question aligns with the NEET CHEMISTRY syllabus, specifically targeting concepts from Biomolecules. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

CHEMISTRYBiomoleculesfollowingcompoundspresenceintramolecularhydrogen

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