Identify the substance oxidised and reduced in the reaction :
`CuO(s) + Zn(s) to ZnO(s) + Cu(s)`.

Identify the substance oxidised and substance reduced in the following reactions : (i) ZnO(s) + C(s) to Zn(s) + CO(g) (ii) 2Na(s) + O_(2)(g) to 2Na_(2)O(s) (iii) CuO (s) + H_(2)(g) to Cu(s) + H_(2)O(l) .

Identify the substances that are oxidised and the substances that are reduced in the following reactions. CuO(s) +H_(2)(g) to Cu(s) +H_(2)O (l)

Identify the substances that are oxidised and the substance that are reduced in the following reaction: CuO(s) + H2(g)rarrCu(s) + H2O(I)

Identify the substance oxidised and the oxidising agent in the following reaction : H_(2)S+Cl_(2)toS+2HCl