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NEET Chemistry Chemical Kinetics / रासायनिक बलगतिकी Question Bank Self Evaluation Test - Chemical Kinetics

  • question_answer
    The half-life of a reaction is inversely proportional to the square of the initial concentration of the reactant. Then the order of the reaction is

    A) 0                                 

    B) 1     

    C) 2                                 

    D) 3

    Correct Answer: D

    Solution :

    [d]  \[{{t}_{1/2}}\propto \frac{1}{{{a}^{2}}}\] We know that \[{{t}_{1/2}}\propto \frac{1}{{{a}^{n-1}}}\] i.e. \[n=3\] Thus reaction is of 3rd order.


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