Complete the chemical reactions.
PbS(s) + `H_(2)O_(2)`(aq) `rarr`
`"MnO"_(4)`(aq) + `H_(2)O_(2)`(aq) `rarr`
CaO(s) + `H_(2)O_(2) rarr `
`"AlCl"_(3)(g) + H_(2)O(l) rarr`
`Ca_(3)N_(2)(s) + H_(2)O(l) rarr`
Classify the above into [a] hydrolysis,[b] redox and [c] hydration reactions.

Explanation

PbS(s) + `4H_(2)O_(2)(aq) rarr "PbSO"_(4)(s) + 4H_(2)O(l)`
(2) 2`"MO"_(4)^(_)(aq) + 5H_(2)O_(2)(l) + 6H^(+)(aq) rarr 2Mn^(2+) (aq) + 8H_(2)O(l) + 5O_(2)(g)`
(3) CaO(s) + `H_(2)O(g) rarr " "Ca(OH)_(2)`(aq)
(4) `"AlCl"_(3)(g) + 6H_(2)"O"(l) rarr " "[Al(H_(2)O)_(6)]^(3+)`(aq) + 3`Cl^(-)` (aq)
`[ Al(H_(2)O)_(6)]^(3+)`(aq) + `H_(2)O(l) " "rarr" "[ Al(H_(2)O)_(5)(OH)]^(2+)`(aq) + `H_(3)O^(+)`(aq)
(5) `Ca_(3)N_(2)(s) + 6H_(2) O(l) rarr 3Ca(OH)_(2)`(aq) + `2NH_(3)`(aq)
Reaction (1) and (2) are redox reaction. Reactions (3), (5) are hydrolysis reaction. Reaction (4) is hydration reaction.