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Which of the following processes involve...

Which of the following processes involve the roasting process?

A

`ZnCO_3 to ZnO + CO_2`

B

`Fe_2O_3 + 3C to 2Fe + 3CO`

C

`2PbS + 3O_2 to 2PbO + 2SO_2`

D

`Al_2O_3. 2H_2O to Al_2O_3 + 2H_2O`

Text Solution

Verified by Experts

The correct Answer is:
C
Roasting involves heating the ore strongly in presence of excess of air `(O_2)`.
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