Statement I : Half life period of first order reaction is independent of concentration of the reactantStatement II : 99.9% reaction of first order reaction completes in 10 half lives
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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 B.
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Detailed Solution
For first order reactiont0.5=0.693K1 no concentration term ,independent of concentration2.303×0.3010t0.5=2.303t99.9log100100-99.9 simplifying t99.9=10t0.5