Electrolysis

Conductors and insulators

Electrolytes and non- electrolytes

Conditions for electrolysis:

Electrodes used in electrolysis must be inert means that it doesn’t

undergo any chemical reaction.

Electrolysis of molten lead bromide:

Electrodes are made of inert carbon

Silver solid (lead)

Electrolysis of solutions:

Electrolysis of concentrated hydrochloric acid solution

Electrodes are made of graphite

Colorless gas

Pale green gas

Electrolysis of diluted sodium chloride solution

For concentrated solution of sodium chloride:

Manufacture of chlorine and sodium hydroxide:

Steel cathode

Electrolysis of diluted copper (II) sulphate solution