O-LevelChemistryMetals & Reactivity5070/11 · Oct/Nov 2019 · Q171 Mark

The equation for an industrial process is shown. C(s) + H₂O(g) → CO(g) + H₂(g) ΔΗ = +131 kJ/mol Which row is correct?

Athe oxidising agent is C(s), the reducing agent is H₂O(g), the reaction is endothermic

Bthe oxidising agent is C(s), the reducing agent is H₂O(g), the reaction is exothermic

Cthe oxidising agent is H₂O(g), the reducing agent is C(s), the reaction is endothermic

Dthe oxidising agent is H₂O(g), the reducing agent is C(s), the reaction is exothermic

✓ Correct answer

C: the oxidising agent is H₂O(g), the reducing agent is C(s), the reaction is endothermic

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2019 Paper 1 Variant 1, question 17.

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