Which of the following processes  does not involves the roasting process 

Which of the following processes  does not involves the roasting process 

  1. A

    ZnS + 3O2   2ZnO + 2SO2

  2. B

    Fe2O+ 3C   2Fe + 3CO

  3. C

    2PbS + 3O2   2PbO + 2SO2

  4. D

    2Cu2S + 3O2  2Cu2O + 2SO2

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    Solution:

    Fe2O3 +3C2Fe +3CO involed in reduction

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