Explain the electrolysis of water with the help of a well labelled diagram also write the chemical reaction taking places - Science - Chemical Effects of Electric Current

Question

Explain the electrolysis of water with the help of a well
labelled diagram also write the chemical reaction taking places at
the electrodes

Urvashi Yadav · Accepted Answer

Electrolysis of
water:

Electrolysis means using electric current to
make a chemical reaction possible which is otherwise do not occur
Electrolysis of water means passing electric current through water
to decompose it into hydrogen gas and oxygen
gas

Electrodes:

Cathode - Graphite
rod

Anode - Graphite rod

Hydrogen and oxygen gases are collected at
cathode and anode respectively

Reaction:

The reaction that takes place during the
process can be shown as:-

2H2O â†’
2H2 +O2

At cathode:-
Reduction

2 H+ (aq) +2e- â†’
H2

At anode:-
Oxidation

OH- (aq) â†’ OH +
e-

4 OH â†’
2H2O + O2

Diagram:

Explain the electrolysis of water with the help of a well labelled diagram also write the chemical reaction taking places at the electrodes.