Question

Identify the substances that are oxidised and the substances that are reduced in the following reactions. (i) 4Na(s) + 0₂(g) → 2Na₂O(s) (ii) CuO(s) + H₂(g) → Cu(s) + H₂0(I)

Answer 1

4Na is oxidised while O2 is reduced.

CuO is reduced while H2 is oxidised.

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