Question

Write one equation for the decomposition reaction where energy is supplied in the form of light.

Answer 1

1. \[\ce{\ce{\underset{Hydrogen peroxide}{2H2O2_{(l)}}} ->[Light] \underset{Water}{2H2O_{(l)}} + \underset{Oxygen}{O2_{(g)}}}\]
2. \[\ce{\underset{(White)}{\underset{Silver chloride}{2AgCl_{(s)}}} ->[sunlight][Decomposition] \underset{(Greyish white)}{\underset{Silver}{2Ag_{(s)}}} + \underset{(Yellowish green)}{\underset{Chlorine}{Cl2_{(g)}}}}\]
3. \[\ce{\underset{(Pale yellow)}{\underset{Silver bromide}{2AgBr_{(s)}}} ->[Light][(Decomposition)] \underset{(Greyish white)}{\underset{Silver}{2Ag_{(s)}}} + \underset{(Red-brown)}{\underset{Bromine}{Br2_{(g)}}}}\]