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

  • question_answer
    Units of rate constant of first and zero order reactions in terms of molarity M unit are respectively

    A) \[se{{c}^{-1}},\text{ }M.se{{c}^{-1}}\]          

    B) \[se{{c}^{-1}},\text{ }M\]

    C) \[M.se{{c}^{-1}},\text{ }se{{c}^{-1}}\]          

    D) \[M,\text{ }se{{c}^{-1}}\]

    Correct Answer: A

    Solution :

    [a] For a zero order reaction. rate \[=k\left[ A \right]{}^\circ \] i.e., rate =k hence unit of \[k=M.se{{c}^{-1}}\] For a first order reaction. rate \[=k\left[ A \right]\] \[k=M.se{{c}^{-1}}/M=se{{c}^{-1}}\]


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