Question

Give one example each of
(a) Thermal decomposition
(b) Electrolytic decomposition
(c) Photo decomposition

Answer 1

$\left(a\right){\mathrm{MgCO}}_3\left(s\right)\stackrel{\mathrm{Heat}}{\to }\mathrm{MgO}\left(s\right)+{\mathrm{CO}}_2\left(g\right)\left(b\right)2H_{2}O\left(l\right)\underset{\mathrm{Current}}{\overset{\mathrm{Electric}}{\to }}2H_2\left(g\right)+O_2\left(g\right)\left(c\right)2AgC{l}_{\left(S\right)}\underset{\mathrm{Light}}{\to }2A{g}_{\left(S\right)}+C{l}_{2\left(g\right)}$