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JEE Main & Advanced Chemistry Chemical Kinetics / रासायनिक बलगतिकी Question Bank Critical Thinking Chemical Kinetics

  • question_answer
    The differential rate law for the reaction \[{{H}_{2}}+{{I}_{2}}\to 2HI\] is                                  [AIEEE 2002]

    A)                 \[-\frac{d[{{H}_{2}}]}{dt}=-\frac{d[{{I}_{2}}]}{dt}=+\frac{1}{2}\frac{d[HI]}{dt}\]

    B)                 \[\frac{d[{{H}_{2}}]}{dt}=\frac{d[HI]}{dt}=\frac{1}{2}\frac{d[HI]}{dt}\]

    C)                 \[\frac{1}{2}\frac{d[{{H}_{2}}]}{dt}=\frac{1}{2}\frac{d[{{I}_{2}}]}{dt}=-\frac{d[HI]}{dt}\]

    D)                 \[-2\frac{d[{{H}_{2}}]}{dt}=-2\frac{d[{{I}_{2}}]}{dt}=+\frac{d[HI]}{dt}\]

    Correct Answer: A

    Solution :

                    Concentration of reactants decreases while concentration of product increases.


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