Question

Express the following reactions in the form of balanced chemical equation .Also identify the type of chemical reaction in each case. (a) An aqueous solution of sodium hydroxide when added to iron(III)sulphate solution gives a brown precipitate of iron(III)hydroxide alongwith sodium sulphate. (b) Iron(III)oxide on heating with carbon monooxide gas reacts to form solid iron and liberates carbon dioxide gas.​

Answer 1

(a) Iron(III) Sulphate solution reacts with Sodium Hydroxide solution to give Brown precipitate of Iron(III) Hydroxide along with Sodium Sulphate.

Fe2(SO4)3 + 6NaOH → 2Fe(OH)3↓ + 3Na2SO4.

(b) Iron(III) Oxide on heating with Carbon monoxide gas reacts to form solid Iron and liberates Carbon dioxide gas.

Fe2O3 + 3CO → 2Fe + 3CO2↑.