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

  • question_answer
    \[A+2B\to C\], the rate equation for this reaction is given as Rate \[=K\left[ A \right]\left[ B \right].\] If the concentration of A is kept the same but that of B is doubled what will happen to the rate itself?

    A) halved                          

    B) the same

    C) doubled            

    D) quadrupled

    Correct Answer: C

    Solution :

    [c] \[Rate=k\left[ A \right]\left[ B \right]=R\] \[R'=k\left[ A \right]\left[ 2B \right]\] \[\frac{R}{R'}=\frac{k[A][B]}{k[A][2B]}=\frac{k[A][B]}{2k[A][B]}\] \[\Rightarrow 2R=R'\] i.e., rate become doubles.


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