Hydrogen peroxide, on exposure to sunlight breaks down to form water and oxygen gas along with heat energy. That is,
H2O2→ H2O + O2
It is an example of a photochemical decomposition reaction.
What do you observe when
(a) Lead nitrate is heated.
(b) Chlorine water is exposed to sunlight.
(c) Hydrogen peroxide is exposed to sunlight.
(d) H2S gas is passed through copper sulphate solution.
(e) Barium chloride is added to sodium sulphate solution.
What do you observe when :
(a) Blue vitriol is heated ?
(b) Washing soda is exposed to air ?
(c) Blue litmus solution is added to water ?
What do you observe when sunlight passes through a dense forest