Q.

Statement I :  Half-life period of a reaction of first order is independent of initial concentration.Statement II : Half-life period for a first order reaction is equal to 2.303Klog2

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a

Statement I and II are correct and II explains I

b

Statement I and II are correct and II does not explain I

c

Statement - I is correct and Statement - II is incorrect

d

Both statement - I and II are incorrect

answer is A.

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Detailed Solution

t12=0.693kThe equation does not includes concentration term, hence half-life time is independent of initial concentration of reactants.
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Statement I :  Half-life period of a reaction of first order is independent of initial concentration.Statement II : Half-life period for a first order reaction is equal to 2.303Klog2