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AFMC AFMC Solved Paper-2010

  • question_answer
    In the complex ion \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}},\] the \[N{{H}_{3}}\]molecules are linked to the central metal ion by

    A)  ionic bonds                       

    B)  covalent bonds

    C)  coordinate bonds          

    D)  hydrogen bonds

    Correct Answer: C

    Solution :

                     A complex is formed, when ligand(s) donates its  (their) electrons to the vacant d-orbital of transition metals. Since, the electrons are given by only ligands and used up by metals as well as ligands, the bond formed is called coordinate bond.


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