Question

How is zinc obtained from sulphide and carbonate ores deffine between thw two given to chemical rea ction?

Answer 1

$\bold{Ores \: are \: converted \: to \: their \: oxides}$$\bold{Because \: oxides \: are \: easy \: to \: reduce}$

$\bold{FOR \: SULPHIDE \: ORE}$

◼Zinc will be obtained from its sulphide ore by the process of roasting.

$\bold{ROASTING}$

Its the process of heating the concentrated ore in the presence of air to a high temperature before it is reduced to metal.

✳It gives a residue which is yellow when hot and white when cold , which is zinc oxide.

◼Zinc will be obtained from its carbonate ore by the process of calcination.

$\bold{Calcination}$

Its the process of heating the concentrated ore in the limited or in absence of air to a high temperature before its melting point or not sufficient to melt the ore.

✳It gives a residue which is yellow when hot and white when cold , which is zinc oxide.

$\bold{Reducing \: to \: metal}$

Zinc can be reduced from its oxide to its metal by a reducing agent like Carbon, carbon monoxide and hydrogen.