Which of the following processes involve...

Which of the following processes involves smelting ?

A

`ZnCO_3 rarr ZnO + CO_2`

B

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

C

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

D

`Al_2O_3.2H_2O rarr Al_2O_3 + 2H_2O`

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The correct Answer is:

B

Reduction with carbon is called smelting
`Fe_2O_3 + 3C rarr 2Fe + 3CO`.

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