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Hydrogen Peroxide

In the follow...

Question

In the following reaction, identify the species oxidised, the species reduced, the oxidising agent and the reducing agent:
$2 H^{+} + M g \to M g^{2 +} + H_{2}$ .

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Solution

$M g + 2 H^{+} = M g^{2 +} + H_{2}$
Writing oxidation numbers of various atoms,
$M g$ is oxidised, i.e., it acts as a reducing agent. $H^{+}$ is reduced, i.e., it acts as an oxidising agent.

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