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NEET Chemistry Metallurgy / धातुकर्म Question Bank Self Evaluation Test - General Principals and Process of Isolation of Elements

  • question_answer
    When a metal is to be extracted from its ore and the gangue associated with the ore is silica, then

    A) an acidic flux is needed

    B) a basic flux is needed

    C) both acidic and basic fluxes are needed

    D) Neither of them is needed

    Correct Answer: B

    Solution :

    [b] Since silica is acidic impurity the flux must be basic. \[CaO+Si{{O}_{2}}\to CaSi{{O}_{3}}\]


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