O-LevelChemistryAcids, Bases & Salts5070/11 · May/June 2018 · Q341 Mark

Which pair of gases are both non-acidic?

Aammonia and methane

Bcarbon dioxide and ammonia

Cmethane and nitrogen dioxide

Dnitrogen dioxide and carbon dioxide

✓ Correct answer

A: ammonia and methane

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Topic: Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2018 Paper 1 Variant 1, question 34.

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