Which statements are not correct about Ist order reaction? (A) They take an infinitesimally long...

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Which statements are not correct about Ist order reaction?
(A) They take an infinitesimally long time for the reaction to go to completion.
(B) The decrease in \( t_{1 / 2} \) is exponential for Ist order reaction.
(C) For all practical purposes they are supposed to be completed after 10 halves.
(D) The degree of dissociation of a reactant obeying Ist order is given by \( e^{-\lambda t} \).
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