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NEET NEET SOLVED PAPER 2015 (Re)

  • question_answer
    The rate constant of the reaction \[A\to B\] is \[0.6\times {{10}^{-3}}\] mole per second. If the concentration of A is 5 M then concentration of B after 20 min is

    A)  1.08 M

    B)  3.60 M

    C)  0.36 M                

    D)  0.72 M

    Correct Answer: D

    Solution :

    Key concept For a zero order reaction unit of rate constant is mole per second. Hence, we can easily calculate concentration of B after 20 mm by the following formula, \[x=Kt\] \[x=Kt=0.6\times {{10}^{-3}}\times 20\times 60=0.72M\]


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