JEE Main & Advanced JEE Main Solved Paper-2015

  • question_answer
    The colour of \[KMn{{O}_{4}}\] is due to: [JEE Main Solved Paper-2015 ]

    A) \[L\to M\] charge transfer transition

    B) \[\sigma \to \sigma *\]  transition

    C) \[M\to L\] charge transfer transition

    D) \[d-d\] transition

    Correct Answer: A

    Solution :

    \[{{O}^{-}}-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{Mn}}}\,=O\]colour due to= \[L\to M\]charge transfer transition.


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