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NEET Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank Self Evaluation Test - The d-and f-Block Elements

  • question_answer
    A compound of a metal ion \[{{M}^{x+}}(Z=24)\] has a spin only magnetic moment of \[\sqrt{15}\]  Bohr Magnetons. The number of unpaired electrons in the compound are

    A) 2                                 

    B) 4   

    C) 5                                 

    D) 3

    Correct Answer: D

    Solution :

    [d] Magnetic moment \[\mu =\sqrt{n(n+2)}\] where n = number of unpaired electrons \[\sqrt{15}=\sqrt{n(n+2)}\therefore n=3\]


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