O-LevelChemistryAcids, Bases & Salts5070/11 · Oct/Nov 2013 · Q201 Mark

When the product of a reaction between two gases is added to water, a solution of pH7 is formed. Which could be these gases?

Ahydrogen and chlorine

Bhydrogen and nitrogen

Chydrogen and oxygen

Doxygen and carbon monoxide

✓ Correct answer

C: hydrogen and oxygen

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Topic: Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2013 Paper 1 Variant 1, question 20.

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