JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2013

  • question_answer
    Spin only magnetic moment of the compound \[Hg[Co{{(SCN)}_{4}}]\]is

    A)  \[\sqrt{3}BM\]                

    B)  \[\sqrt{8}BM\]

    C)  \[\sqrt{15}BM\]                              

    D)  \[\sqrt{24}BM\]

    Correct Answer: C

    Solution :

                    In\[Hg[Co{{(SCN)}_{4}}],\]cobalt is in\[+2\]state with three unpaired electrons in 3d orbital. Thus,  \[\mu =\sqrt{3(3+2)}=\sqrt{15}BM\]


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