Electrolysis

Anode +ve for chlorine

Sodium Hydroxide formed as well

Cathode -ve for hydrogen

Margarine

Fertilisers

Raw material cheap

Product uses are useful

Product are very valuable

Disinfectant

Bleach

Plastic

Soap

Removing grease

Potassium, sodium,calcium, magnesium
and aluminium

Very reactive and uses electrolysis
to be extracted molten compund

Zinc, iron, tin, lead, copper

Heat metal oxide with carbon

Silver and Gold found unreactive in the ground pure