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Units of rate constant of first and zero order reaction in terms of molarity M are respectively :

$(A)\;S^{-1},MS^{-1} \\ (B)\;S^{-1},M \\(C)\;MS^{-1} \\(D)\;M,S^{-1} $
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$K= \large\frac{dx}{dt[A]}$ for I order $= \sec^{-1}$
$K=\large\frac{dx}{dt}$ for zero order
$\qquad= mol\;litre ^{-1} sec^{-1}$
Hence A is the correct answer.
answered Apr 3, 2014 by meena.p

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