(C) For a reaction of order $n$,the half-life $t_{1/2}$ is related to the initial concentration $a$ by the expression $t_{1/2} \propto \frac{1}{a^{n-1

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(C) For a reaction of order $n$,the half-life $t_{1/2}$ is related to the initial concentration $a$ by the expression $t_{1/2} \propto \frac{1}{a^{n-1}}$.This is a standard relationship derived from the integrated rate law for an $n^{th}$ order reaction where $n \neq 1$.Therefore,the order of the reaction is $n$.Thus,Option $C$ is correct.

Class 12 Chemistry Chemical Kinetics Rate law , Rate constant , Order of Reaction and Molecularity

Medium

For a certain reaction,the expression for half-life is $t_{1/2} \propto \frac{1}{a^{n-1}}$. What is the order of the reaction?

A
$n-1$
B
$n+1$
C
$n$
D
$n-2$

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Chemical Kinetics

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Rate law , Rate constant , Order of Reaction and Molecularity

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For a certain reaction,the expression for half-life is $t_{1/2} \propto \frac{1}{a^{n-1}}$. What is the order of the reaction?

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Write the general reaction and its rate law.

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