Question

Give one example of a decomposition reaction which is carried out with electricity.

Answer 1

When an electric current is passed through acidified water, it decomposes to give hydrogen gas and oxygen gas. This reaction can be represented as:

\[\ce{\underset{Water}{2H2O_{(l)}} ->[Electricity][(Decomposition)] \underset{Hydrogen}{2H2_{(g)}} + \underset{Oxygen}{O2_{(g)}}}\]