The process that involves the removal of sulphur from the ores is :

Question:

The process that involves the removal of sulphur from the ores is : 

  1. Smelting 

  2. Roasting 

  3. Leaching

  4. Refining


Correct Option: , 2

Solution:

In roasting process, metal sulphide (MS) ore are converted into metal oxide and sulphur is

remove in the form of $\mathrm{SO}_{2}$ gas.

$2 \mathrm{MS}+3 \mathrm{O}_{2} \stackrel{\Delta}{\longrightarrow} 2 \mathrm{MO}+2 \mathrm{SO}_{2} \uparrow$

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