Select the incorrect option :

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Question

(A) The rate law of a chemical reaction is determined experimentally and depends on the mechanism of the reaction. Species appearing in the balanced c

Vedclass · Accepted Answer

Each species appearing in balanced chemical equation must appear in kinetic rate law.

Vedclass · Answer

(A) The rate law of a chemical reaction is determined experimentally and depends on the mechanism of the reaction. Species appearing in the balanced chemical equation do not necessarily appear in the rate law,especially if they are intermediates or if the reaction is complex. Therefore,option $A$ is incorrect. Bimolecular elementary reactions involve the collision of two particles,making them second order,so $B$ is correct. Alkaline hydrolysis of an ester (saponification) follows second-order kinetics,so $C$ is correct. For elementary reactions,the order and molecularity are indeed the same,so $D$ is correct.

Experiment	$[A] / mol \, L^{-1}$	$[B] / mol \, L^{-1}$	Initial rate of formation of $D / mol \, L^{-1} \, min^{-1}$
$I$	$0.1$	$0.1$	$6.0 \times 10^{-3}$
$II$	$0.3$	$0.2$	$7.2 \times 10^{-2}$
$III$	$0.3$	$0.4$	$2.88 \times 10^{-1}$
$IV$	$0.4$	$0.1$	$2.40 \times 10^{-2}$

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