JCECE Engineering JCECE Engineering Solved Paper-2004

  • question_answer
    Which of the following statements, about zero order reaction is not true?

    A)  Its rate constant unit is\[{{s}^{-1}}\]

    B)  The graph between time and rate of reaction is a straight line

    C)  Rate of reaction is independent of concentration of reactants

    D)   None of the above

    Correct Answer: A

    Solution :

    Key Idea: For zero order reaction                 \[r=k{{[conc]}^{0}}\] \[\therefore \]Units of \[k\] are\[mol\,\,{{L}^{-1}}tim{{e}^{-1}}\] \[\therefore \]The statement that unit of rate constant for zero order reaction is \[{{s}^{-1}}\] is wrong. It is in fact unit of k for first order reaction. The other statements are correct.


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