Question

Zinc is extracted from zinc blende by roasting it in air to form zinc oxide. The zinc oxide is then heated with carbon to form zinc. The equations for the reactions are shown. 2ZnS + 3O2 → 2ZnO + 2SO2 ZnO + C → Zn + CO Which statement about reactions 1 and 2 is not correct? A. In reaction 1 the oxidation state of sulfur increases, and it is oxidised. B. In reaction 1 the oxidation state of zinc increases, and it is oxidised. C. In reaction 2 the carbon acts as a reducing agent and it is oxidised. D. In reaction 2 the oxidation state of zinc decreases, and it is reduced.

Answer 1

Respuesta:

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