Question

Name the cations formed during electrolysis of water.

Answer 1

Ions - ions are electrically charged atoms or a group of atoms. They are of two types cations and anions.

Cations are positively charged ions. Example- hydrogen ions (${\mathrm{H}}^{+}$). They moved towards the cathode.

Anions are negatively charged ions. Example-Oxygen ions (${\mathrm{O}}^{-}$). They move towards the anode.

• Cathode is connected to the negative terminal and anode to the positive terminal of the battery.
• When an electric current is passed through the water, water splits into hydrogen and oxygen.
• Bubbles of hydrogen gas get collected at the cathode and oxygen at the anode.
• Hydrogen and oxygen gas gets collected in the 2:1 by volume.

The cations formed during the electrolysis of water is hydrogen ion.