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

  • question_answer
    Which one of the following is a mineral of iron?

    A) Malachite          

    B) Cassiterite

    C) Pyrolusite          

    D) Magnetite

    Correct Answer: D

    Solution :

    [d] Magnetite - \[F{{e}_{3}}{{O}_{4}}\] Malachite - \[CuC{{O}_{3}}.Cu{{(OH)}_{2}}\] Cassiterite - \[Sn{{O}_{2}}.\] Pyrolusite - \[Mn{{O}_{2}}\]


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