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NEET Sample Paper NEET Sample Test Paper-13

  • question_answer
    The rate of reaction between two reactants A and B decreases by a factor of 4 if the concentration of reactant B is doubled. The order of this reaction with respect to reactant B is

    A)  -1                               

    B)  -2

    C)  1                                

    D)  2

    Correct Answer: B

    Solution :

     \[R=k{{[B]}^{n}};\frac{1}{4}R=k{{[2B]}^{n}};4={{\left( \frac{1}{2} \right)}^{n}};4={{2}^{-n}};n=-2.\]


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