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For the zero order reaction A rarr B+C, ...

For the zero order reaction `A rarr B+C,` initial concentration of A is `0.1A`. If `A=0.08M` after 10 minutes, then it's half`-` life and completion time are respectively `:`

A

10 min, 20 min

B

`2 xx 10^(-3)` min, `4 xx 10^(-3)` min

C

25 min, 50 min

D

250min, 500min

Text Solution

Verified by Experts

The correct Answer is:
C
`x=0.1- 0.08 =0.02 M, k =(x)/(t)=(0.02)/(10)=2xx10^(-3)M" min"^(-1)`
`therefore t_(1//2) =([A]_(0))/(2K) =(0.1)/(2xx2xx10^(-3))=25` min
`t_("completion") =2xxt_(1//2)=50` min
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