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Choose the correct option the code regar...

Choose the correct option the code regarding roasting process.
(I) It is the process of heating the ore in air in a reverberatory furnace to obtain the oxide.
(II) It is an exothermic process.
(III) It is used for the concentration of sulphide ore.
(Iv) It removes easily oxidisable volatile impurities present in the concentrated ore.

A

I , II and III

B

I ,II and IV

C

I , III and IV

D

I , II , III and IV

Text Solution

Verified by Experts

The correct Answer is:
b
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