Identify the oxidising agent (oxidant) in the following reactions.
$C u O + H_{2} \to C u + H_{2} O$

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Solution

An oxidising agent is the one which oxidises other substances (by removal of hydrogen or addition of oxygen) and itself gets reduced(addition of hydrogen or removal of oxygen).
$C u O + H_{2} \to C u + H_{2} O$
In above reaction, cupric oxide $(C u O)$ acts as an oxidising agent as it oxidises hydrogen( $H_{2}$ ) to form water( $H_{2} O$ ) and copper $(C u)$ .

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