Question

Electrolysis of a water is a ____________ reaction.

Answer 1

Decomposition reaction- Decomposition reactions are processes in which chemical species break up into simpler parts.

Electrolysis of water- A chemical reaction in which the water decomposes to form hydrogen and oxygen gases by passing an electric current.

$$\begin{gathered} 2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)\to 2{\mathrm{H}}_2\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right) \\ \mathrm{water}\mathrm{hydrogen}\mathrm{Oxygen} \end{gathered}$$