Read the redox reaction given below and answer the questions:
$C u O + H_{2} ⟶ C u + H_{2} O$
(a) Conversion of $C u O$ into $C u$ is called _______.
(b) Conversion of $H_{2}$ into $H_{2} O$ is called _______.

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Solution

Removal of electrons or the loss of oxygen is termed as oxidation whereas gain of electrons or gain of oxygen is termed as reduction. So, (a) is reduction and (b) is oxidation.

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