The text discusses various industrial applications and chemical processes, particularly focusing on the uses and extraction methods of different elements and compounds. Electrolysis plays a significant role in extracting reactive metals like potassium, sodium, calcium, magnesium, and aluminum from their molten compounds.
Electrolysis
Metals
Silver and Gold found unreactive in the ground pure
Zinc, iron, tin, lead, copper
Heat metal oxide with carbon
Potassium, sodium,calcium, magnesium
and aluminium
Very reactive and uses electrolysis
to be extracted molten compund