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JEE Main & Advanced Chemistry Chemical Kinetics / रासायनिक बलगतिकी Question Bank Mock Test - Chemical Kinetics

  • question_answer
    Consider a first order decomposition process \[{{A}_{3}}\to \frac{3}{2}{{A}_{2}}\] A plot of concentration of \[{{A}_{3}}\] and \[{{A}_{2}}\] versus time is shown below. At time \[{{t}_{A}}\] percentage of reactant decomposed is

    A) 75%                 

    B) 50%

    C) 40%                 

    D) 30%

    Correct Answer: C

    Solution :

    [c] \[{{A}_{3}}\to \frac{3}{2}{{A}_{2}}\] \[A-x=\frac{3}{2}x\] \[A-x=\frac{3}{2}x\] or \[x=\frac{2}{5}A=40%\,of\,A.\] % of A.


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