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For a first order reaction Ato products ...

For a first order reaction `Ato` products 93.75% of A initilly taken (2M), reacts in 80 min, then

A

Rate constant is `3.465xx10^(-2)"min"^(-1)`

B

units of rate constant are `"min"^(-1)`

C

Initial rate is `6.93xx10^(-2)` mole `"lit"^(-1)"min"^(-1)`

D

`t_(1//2)` is independent of initial concentration

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The correct Answer is:
A, B, C, D
`Kxxt=2.303log((C_(0))/(C_(t))),K=2.303/80xxlog(100/6.25)=2.303/80xxlgo(10/2.5)=2.303/80xxlog(2)`
`=2.303/80xx4xx0.3010=0.03466=3.466xx10^(-2)"min"^(-1),rK.[A]=3.416xx10^(-2)xx2=6.93xx10^(-2)` m/min
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