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JEE Main & Advanced Chemistry Metallurgy / धातुकर्म Question Bank Occurrence

  • question_answer
    Which of the following mineral does not contain \[Al\] [IIT (Screening) 1992]

    A) Cryolite

    B) Mica

    C) Feldspar

    D) Fluorspar

    Correct Answer: D

    Solution :

    Fluorspar\[(Ca{{F}_{2}})\], Cryolite\[(N{{a}_{3}}Al{{F}_{6}})\], Feldspar\[(KAlS{{i}_{3}}{{O}_{8}})\], Mica \[({{K}_{2}}O.3A{{l}_{2}}{{O}_{3}}.6Si{{O}_{2}}.2{{H}_{2}}O)\]


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