JEE Main & Advanced Sample Paper JEE Main Sample Paper-45

  • question_answer
    Direction: The dissociation of complex may be expressed as \[{{[M{{L}_{x}}]}^{4+}}\,+xL\] and equilibrium constant of this is known as instability constant which is a measure of stability. The stability of complex depends on EAN of central atom, charge on metalion, basic nature of ligand and chelation.
    The EAN of \[Co\] in \[Co{{(CO)}_{4}}\] is 35 and it is less stable. It attains stability by

    A) oxidation of Co           

    B) reduction of Co  

    C) dimerization                

    D) tetramerization

    Correct Answer: C

    Solution :

    \[C{{O}_{2}}\,{{(CO)}_{8}}\] is most stable. Thus, \[CO\,{{(CO)}_{4}}\] attains stability by dimerisation.

You need to login to perform this action.
You will be redirected in 3 sec spinner