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The time for 90% of a first order reacti...

The time for 90% of a first order reaction to complete is approximately

A

1.1 times that of half-life

B

2.2 times that of half-life

C

3.3 times that of half-life

D

4.4 times that of half-life

Text Solution

Verified by Experts

The correct Answer is:
C
`kt=n ((100)/(10))=n 10`
`t=(n 10)/(k) =(n10)/(n2) xx t_(1//2)`
`t=(2.303)/(0.693) t_(1//2) ~~ 3.3 t_(1//2)`
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