Notifications
Clear all
0
05/11/2020 5:33 pm
Topic starter
An ore on heating in air produces sulphur dioxide. Which process would you suggest for its concentration? Describe briefly any two steps involved in the conversion of this concentrated ore into related metal.
1 Answer
0
05/11/2020 5:36 pm
It is concentrated by froth-floatation process.
(i) Roasting: The concentrated sulphide ore is heated strongly in the presence of oxygen to convert it into its oxide.
2ZnS(s) + 3O2(g) → 2ZnO(s) + 2SO2
(ii) Reduction : This oxide of metal is reduced with suitable reducing agent to get free metal.
ZnO(s) + C(s) + heat → Zn(s) + CO(g)