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JEE Main & Advanced Chemistry The Solid State / ठोस प्रावस्था Question Bank Crystal structure and Coordination number

  • question_answer
    An example of a non-stoichiometric compound is [NCERT 1983]

    A) \[A{{l}_{2}}{{O}_{3}}\]  

    B) \[F{{e}_{3}}{{O}_{4}}\]

    C) \[Ni{{O}_{2}}\] 

    D) \[PbO\]

    Correct Answer: B

    Solution :

    \[F{{e}_{3}}{{O}_{4}}\] is a non-stoichiometric compound because in it the ratio of the cations to the anions becomes different from that indicated by the chemical formula.


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