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CMC Medical CMC-Medical Ludhiana Solved Paper-2015

  • question_answer
    Half-life of reaction is inversely proportional to the square of initial concentration. The order of reaction is

    A)  0                                            

    B)  1

    C)  2                                            

    D)  3

    Correct Answer: D

    Solution :

                    We have   \[{{t}_{1/2}}\propto \frac{1}{{{a}^{n-1}}}\] When       \[n=3\]                 \[{{t}_{1/2}}=\frac{1}{{{a}^{3}}-1}=\frac{1}{{{a}^{2}}}\] \[\therefore \]Order of reaction = 3


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