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JEE Main & Advanced Chemistry Metallurgy / धातुकर्म Question Bank Roasting and Calcination

  • question_answer
    In the manufacture of iron lime stone added to the blast furnace, the calcium ion ends in the form of [MP PMT 1989; CPMT 1989; KCET 1993; IIT 1982; MADT Bihar 1995]

    A) Slag

    B) Gangue

    C) Calcium metal

    D) \[CaC{{O}_{3}}\]

    Correct Answer: A

    Solution :

    \[\underset{\text{Im}\text{purity}}{\mathop{Si{{O}_{2}}}}\,+\underset{\text{Flux}}{\mathop{CaO}}\,\to \underset{\text{Slag}}{\mathop{CaSi{{O}_{3}}}}\,\]


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