Complete the following chemical reactions. (i) PbS (s) + H 2 O 2 (aq) → PbSO 4 + H 2 O (ii) MnO – 4 aq + H 2 O 2 (aq) → 2Mn +2 + 8H 2 O + 5O 2 (iii) CaO (s) + H 2 O (g) → Ca (OH) 2 (iv) AlCl 3 (g)+ H 2 O(l) → Al (OH) 3 + 3HCl (v) Ca 3 N 2 (s) + H 2 O → 3Ca (OH) 2 + 2NH 3

Question

Philoid · Accepted Answer

(i) In the given reaction H₂O₂ is oxidizing agent and hence the reaction is a redox reaction.

(ii) In the given reaction H₂O₂ is reducing agent and hence the reaction is a redox reaction.

(iii) The reactions in which a compound reacts with water to produce other compounds are called hydrolysis reactions. So the given reaction is hydrolysis.

(iv) The reactions in which a compound reacts with water to produce other compounds are called hydrolysis reactions. So the given reaction represents hydrolysis of AlCl₃.

(v) The reactions in which a compound reacts with water to produce other compounds are called hydrolysis reactions. The given reaction represents hydrolysis of Ca₃ N₂.

Complete the following chemical reactions.(i) PbS (s) + H2O2 (aq) → PbSO4 + H2O(ii) MnO–4 aq + H2O2(aq) → 2Mn+2 + 8H2O + 5O2(iii) CaO (s) + H2O (g) → Ca (OH) 2(iv) AlCl3 (g)+ H2O(l) → Al (OH)3 + 3HCl(v) Ca3 N2 (s) + H2O → 3Ca (OH) 2 + 2NH3