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Q.

The half-life of a reaction is inversely proportional to the square of the initial concentration of the reactant. Then the order of the reaction is

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a

2

b

1

c

0

d

3

answer is D.

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Detailed Solution

detailed_solution_thumbnail

$t_{1 / 2} \propto \frac{1}{a^{2}}$

We know that $t_{1 / 2} \propto \frac{1}{a^{n - 1}}$

ie. n=3

Thus reaction is of 3rd order

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The half-life of a reaction is inversely proportional to the square of the initial concentration of the reactant. Then the order of the reaction is