(b)
Gu Extraction of metais (p8 (8 marks)
Extraction of sodium (potassium) by Down's Process.
Extraction of iron from haemati
Extraction of zinc from zinc blende.
Extraction of copper from copper pyrities.
Extraction of silver silver glance by cyanide process.
Extraction of magnesium from sea water.
Extraction of calcium (aluminium) by electrolytic process.
anuf facture of sodium hydroxide by the electrolysis of brine solution.
cture of nitric acid by the ammonia-oxidation process.
acture of sodium carbonate (sodium hydrogencarbonate) by the Solvay process.
Manufacture of sulphur by Frasch process.
Manufacture of ammonia by Haber process.
Manufacture of chlorine by electrlytic process.
