O-LevelChemistryElectrolysis5070/11 · Oct/Nov 2021 · Q191 Mark

Which statements about oxidation and reduction are correct? 1 Reduction can involve the loss of oxygen. 2 Oxidation can involve the loss of hydrogen. 3 Reduction can involve the loss of electrons.

A1 and 2 only

B1 and 3 only

C2 and 3 only

D1, 2 and 3

✓ Correct answer

A: 1 and 2 only

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Topic: Electrolysis, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2021 Paper 1 Variant 1, question 19.

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