Identify the substances that are oxidise...

Identify the substances that are oxidised and the substances that are reduced in the following reactions.
(i) `4Na(s)+O_(2)(g) to 2Na_(2)O(s)`
(ii) `CuO(s)+H_(2)(g) to Cu(s)+H_(2)O(I)`

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Sodium (Na) is oxidised as it gains oxygen and oxygen gets reduced.
Copper oxide (CuO) is reduced to copper (Cu) while hydrogen `(H_(2))` gets oxidised to water `(H_(2))`.

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Identify the substances that are oxidised and the substances that are reduced in the following reactions.
(i) `4Na(s)+O_(2)(g) to 2Na_(2)O(s)`
(ii) `CuO(s)+H_(2)(g) to Cu(s)+H_(2)O(I)`

Text Solution

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Identify the substances that are oxidised and the substances that are reduced in the following reactions. (i) `4Na(s)+O_(2)(g) to 2Na_(2)O(s)` (ii) `CuO(s)+H_(2)(g) to Cu(s)+H_(2)O(I)`

Text Solution

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CPC CAMBRIDGE PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-UNIT TEST (Answer the following)

Identify the substances that are oxidised and the substances that are reduced in the following reactions.
(i) `4Na(s)+O_(2)(g) to 2Na_(2)O(s)`
(ii) `CuO(s)+H_(2)(g) to Cu(s)+H_(2)O(I)`