O-LevelChemistryOrganic Chemistry5070/12 · Oct/Nov 2021 · Q91 Mark

A covalent compound P has the empirical formula CH2O. Which structure represents P?

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AStructural formula for ethanoic acid (CH3COOH).

BStructural formula for ethanol (CH3CH2OH).

CStructural formula for propan-1-ol (CH3CH2CH2OH).

DStructural formula for propanoic acid (CH3CH2COOH).

✓ Correct answer

A: Structural formula for ethanoic acid (CH3COOH).

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2021 Paper 1 Variant 2, question 9.

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