Question

write the steps involved in the extraction of pure metals in the middle of the activity series from their carbonate ores

Answer 1

i. concentration of carbonate ore.
ii. calcination of concentrated ore for getting metal oxide.
iii. reducing the metal oxide by carbon or aluminium.
iv. refining of metal.

Answer 2

Explanation:

By turning it into its oxide through the calcination method, a metal is acquired from its carbonate ore.

1. In the calcinations process which takes place in the absence of air, the ore is heated at a very high temperature. For example, if we extracted zinc from zinc carbonate ore it is heated at high temperature until the dissociation of ore.

$\mathrm{ZnCO}_{3}(s)+\text {Heat} \rightarrow \mathrm{ZnO}(s)+\mathrm{CO}_{2}(g)$

2. The oxide form of metal can be treated with reducing agents like aluminum and carbon.

$Z n O+C \rightarrow Z n+C O$

3. Finally, we obtain the metal, but it may have lot of impurities, so it needs to be purified by refining process.