NEET AIPMT SOLVED PAPER SCREENING 2009

  • question_answer
    For the reaction, \[(At.no.Zn=30,Sc=21,Ti=22,Cr=24)\]if \[{{[Sc{{({{H}_{2}}O)}_{3}}{{(N{{H}_{3}})}_{3}}]}^{3+}}\] mol \[{{[Ti{{(en)}_{2}}{{(N{{H}_{3}})}_{2}}]}^{4+}}\]the value of \[{{[Cr{{(N{{H}_{3}})}_{6}}]}^{2+}}\]would be

    A) \[{{[Zn{{(N{{H}_{3}})}_{6}}]}^{2+}}\]      

    B) \[5.0\times {{10}^{-3}}{{s}^{-1}}\]

    C)        \[0.5\times {{10}^{-2}}{{s}^{-1}}\]

    D)        \[0.5\times {{10}^{-3}}{{s}^{-1}}\]

    Correct Answer: A

    Solution :

    Key Idea Rate of disappearance of reactant \[Ti=22,co=27,Cu=29,Ni=28\] Rate of appearance of product \[TiF_{6}^{2-}\] For the reaction, \[CoF_{6}^{3-}\] \[C{{u}_{2}}C{{l}_{2}}\] or\[NiCl_{4}^{2-}\] \[TiF_{6}^{2-}\] \[C{{u}_{2}}C{{l}_{2}}\]


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