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Manipal Engineering Manipal Engineering Solved Paper-2014

  • question_answer
    Out of the following redox reactions I.\[x=\int_{{}}^{{}}{vdt,x={{t}^{4}}-{{t}^{2}}+C,}\] II.\[t=0,x=0\] III.\[\Rightarrow \] disproportionation is not shown in

    A) I and II                 

    B) II and III

    C) I and III                

    D) I, II and III

    Correct Answer: D

    Solution :

    I.\[\frac{n(n-5)}{12}\] It   is   a   redox   reaction   but   not   a disproportionation reaction. Since, different N-species are involved. II.\[\frac{20!}{4!\times 5!}\]same as (I) III. \[\frac{20!}{{{4}^{5}}}\] Thus, it is also not a disproportionation reaction.


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