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AFMC AFMC Solved Paper-2011

  • question_answer
    Half-life of a reaction is found to be inversely proportional to  the  cube  of  initial concentration. The order of reaction is

    A) 5                                             

    B) 2

    C) 4

    D) 3

    Correct Answer: C

    Solution :

    We know that if \[{{t}_{1/2}}\propto 1/{{a}^{n}}\]then, order of reaction \[=n+1\] Given that\[{{t}_{1/2}}\propto 1/{{a}^{3}}\] \[\therefore \] order of this reaction = 3 + 1 = 4                                


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