What can we get from the electrolysis of NaCl in dissolved state?
Hydrogen gas and chlorine gas
In electrolysis of
Since sodium is more reactive than hydrogen, it would have a higher tendency to stay as an ion, and so hydrogen will get reduced at the cathode, forming hydrogen gas.
The reduction equation for that is:
At the anode, chlorine ions get oxidized to form chlorine gas opposed to hydroxide ions
The oxidation equation is then:
Together, this is one of the fundamental processes in the chlor-alkali industry, and this process can be called the electrolysis of brine.