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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 24

  • question_answer
    In a mixture of PbS, ZnS and FeS, each component is separated from other by using the reagents in the following sequence in froth floatation process

    A) potassium ethyl xanthate, KCN

    B) potassium ethyl xanthate, KCN, NaOH,\[CuS{{O}_{4}}\], acid

    C) KCN, \[CuS{{O}_{4}}\], acid

    D) none of the above.

    Correct Answer: B

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