O-LevelChemistryOrganic Chemistry5070/12 · Oct/Nov 2015 · Q391 Mark

Proteins and nylon both possess the same amide linkages. Which arrangement of atoms represents an amide linkage?

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AStructural diagram of an ester linkage

BStructural diagram of an amide linkage

CStructural diagram of a carbonyl group linked to an oxygen

DStructural diagram of a branched amide

✓ Correct answer

B: Structural diagram of an amide linkage

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2015 Paper 1 Variant 2, question 39.

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