Which of the following processes involves the roasting process ? – InterviewSolution

1.	Which of the following processes involves the roasting process ?
Answer» `ZncO_3 RARR ZNO + CO_2` `Fe_2O_3 + 3C rarr 2FE _ 3CO` `2PbS + 3O_2 rarr 2PbO + 2SO_2` `Al_2O_3 cdot2H_2O rarr Al_2O_3 + 2H_2O` Answer :C

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