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(D) The rate constant $k$ is a characteristic constant for a given reaction at a specific temperature. $(a)$ It is independent of the concentration of

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Its unit is independent of the order of reaction.

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(D) The rate constant $k$ is a characteristic constant for a given reaction at a specific temperature. $(a)$ It is independent of the concentration of reactants. $(b)$ It varies with temperature according to the Arrhenius equation. $(c)$ If the concentration of all reactants is unity,the rate of reaction equals the rate constant. $(d)$ The unit of the rate constant depends on the order of the reaction $(n)$ and is given by $(mol \ L^{-1})^{1-n} \ s^{-1}$. Therefore,statement $(d)$ is $NOT$ true.

Which of the following statements about the rate constant is $NOT$ true?

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