O-LevelChemistryOrganic Chemistry5070/12 · Oct/Nov 2018 · Q341 Mark

Which statement about the homologous series of alkanes is correct?

AAlkanes are unsaturated hydrocarbons.

BAlkanes all have the general formula CnH2n-

CThe boiling points decrease as the number of carbon atoms per molecule increases.

DThe liquid alkanes become more viscous as the mass of the molecules increases.

✓ Correct answer

D: The liquid alkanes become more viscous as the mass of the molecules increases.

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2018 Paper 1 Variant 2, question 34.

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