Complete the following chemical reactions.
`(i) PbS(s)+H_(2)O_(2)(aq) to `
`(ii) MnO_(4)^(-)(aq)+H_(2)O_(2)(aq) to `
`(iii) CaO(s)+H_(2)O(l) to `
`(iv) AlCl_(3)(s)+H_(2)O(l)to `
`(v) Ca_(3)N_(2)(s)+H_(2)O(l)to `
Classify the above into (a) hydrolysis, (b) redox and (c) hydration reactions.

Explanation

(i) `PbS (s) + 4H_2 O_2 (aq) to PbSO_4 (s) + 4H_2 O(l)`
`(ii) MnO_4^(-)(aq) + 5H_2 O_2 (aq) + 6H^(+) (aq) to 2Mn^(2+) (aq) + 8H_2 O (l) + 5O_2 (g)`
(iii) `CaO(s) + H_2 O(g) to Ca(OH)_2 (aq)`
(iv) `AlCl_3 (g) + 3H_2 O(l) to Al(OH)_3 (s) + 3HCl (aq)`
`(v) Ca_3 N_2(s) + 6H_2 O (l) to 3Ca(OH)_2 (aq) + 2NH_3(aq)`