Solution:
(I)
$\mathrm{PbS}_{(g)}+4 \mathrm{H}_{2} \mathrm{O}_{2(a q)} \rightarrow \mathrm{PbSO}_{4(s)}+4 \mathrm{H}_{2} \mathrm{O}_{(l)}$
$\mathrm{H}_{2} \mathrm{O}_{2}$ is going about as an oxidizing specialist in the response. Consequently, it is a redox response
(ii)
$2 \mathrm{MnO}_{4(a q)}^{-}+5 \mathrm{H}_{2} \mathrm{O}_{2(a q)}+6 \mathrm{H}_{(a q)}^{+} \rightarrow 2 \mathrm{Mn}_{(a q)}^{2+}+8 \mathrm{H}_{2} \mathrm{O}_{(l)}+5 \mathrm{O}_{2(g)} \mathrm{H}_{2} \mathrm{O}_{2(a q)}$ is going about as a
diminishing specialist in the acidic medium, accordingly oxidizing $M n O_{4(a q)}^{-}$
Consequently, the given response is a redox response.
(iii)
$\mathrm{CaO}_{(g)}+\mathrm{H}_{2} \mathrm{O}_{(g)} \rightarrow \mathrm{Ca}(\mathrm{OH})_{2(a q)}$
The responses wherein a compound responds with water to create different mixtures are called hydrolysis responses. The given response is hydrolysis.
(iv)
$2 \mathrm{AlCl}_{3(g)}+3 \mathrm{H}_{2} \mathrm{O}_{(t)} \rightarrow \mathrm{Al}_{2} \mathrm{O}_{3(s)}+6 \mathrm{HCl}_{(\text {aq })}$
The responses wherein a compound responds with water to create different mixtures are called hydrolysis responses. The given response addresses hydrolysis of $\mathrm{AlCl}_{3}$.
(v)
$\mathrm{Ca}_{3} \mathrm{~N}_{2(s)}+6 \mathrm{H}_{2} \mathrm{O}_{(l)} \rightarrow 3 \mathrm{Ca}(\mathrm{OH})_{2(a q)}+2 \mathrm{NH}_{3(g)}$
The responses wherein a compound responds with water to create different mixtures are called hydrolysis responses. The given response addresses hydrolysis of $\mathrm{Ca}_{3} \mathrm{~N}_{2}$.