Question

State, giving reasons, whether the substances printed in bold letters have been oxidised or reduced.
(a) PbO + CO → Pb + CO2
(b) Mg + 2HCl → MgCl2 + H2
(c) H2S + Cl2 → 2 HCl + S (d) Cl2 + H2S → 2HCl + S​

Answer 1

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