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JEE Main & Advanced Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank Mock Test - d- and f- Block Elements

  • question_answer
    \[MnO_{4}^{-}\] is of intense pink colour, though Mn is in (+7) oxidation state. It is due to

    A) oxygen gives colour to it

    B) charge transfer when Mn gives its electron to oxygen

    C) charge transfer when oxygen gives its electron to mb making it Mn(+VI) hence coloured

    D) none is correct

    Correct Answer: C

    Solution :

    [c] The intense pink colour of \[MnO_{4}^{-}\] is not due to d-d transition but due to charge transfer (from O to Mn) reducing the oxidation state of Mn form +6 to +5 momentarily.


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