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Smelting is involved in...

Smelting is involved in

A

`2PbS + 3O_(2) overset(triangle)to 2PbO + 2SO_(2)`

B

`Fe_(2)O_(3) + 3C overset(triangle)to 2Fe + 3CO`

C

`Al_(2)O_(3) + 2H_(2)O overset(triangle)to Al_(2)O_(3) +2H_(2)O`

D

`ZnCO_(3) overset(triangle)to ZnO+CO_(2)`

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The correct Answer is:
B
Smelling is basically the reduction of oxides of metal with carbon at high temperature.
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