Write a balanced chemical equation for each of the following reactions:
(i) Reduction of copper (II) oxide by hydrogen.
(ii) Action of dilute sulphuric acid on sodium hydroxide.
(iii) Action of dilute sulphuric acid on zinc sulphide.
(iv) Ammonium hydroxide is added to ferrous sulphate solution.
(v) Chlorine gas is reacted with ethene.
Show SolutionHide Solution↓
(i) Reduction of copper (II) oxide by hydrogen.
$\text{CuO} + \text{H}_2 \xrightarrow{\Delta} \text{Cu} + \text{H}_2\text{O} [\text{g}]$
(ii) Action of dilute sulphuric acid on sodium hydroxide.
2NaOH + H2SO4 ⟶ Na2SO4 + 2H2O
(iii) Action of dilute sulphuric acid on zinc sulphide.
ZnS + H2SO4 (dil.) ⟶ ZnSO4 + H2S
(iv) Ammonium hydroxide is added to ferrous sulphate solution.
2NH4OH + FeSO4 ⟶ (NH4)2SO4 + Fe(OH)2
(v) Chlorine gas is reacted with ethene.
