NEET Sample Paper NEET Sample Test Paper-9

  • question_answer
    \[{{[Ni{{(CN)}_{4}}]}^{2+}}\] and \[{{[NiC{{l}_{4}}]}^{2-}}\] have dissimilarity but not in

    A)  magnetic moment

    B)  co-ordination number and oxidation states

    C)  structure

    D)  colour

    Correct Answer: B

    Solution :

    In \[{{[Ni{{(CN)}_{4}}]}^{2-}}\] the hybridisation of \[Ni\] is \[ds{{p}^{2}}\](square planar) having no unpaired electron while in \[{{[NiC{{l}_{4}}]}^{-}}\,\,Ni\] is present in \[s{{p}^{3}}\]hybridisation (tetrahedral) with 2 unpaired electrons. Hence these two complexes differ in magnetic moment, structure, and colour but they have similar coordination number (i.e. 4) and oxidation state (i.e. \[+2\])

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