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For the elementary reaction MrarrN, the ...

For the elementary reaction `MrarrN`, the rate of disappearance of `M` increases by a factor of `8` upon doubling the concentration of `M`. The order of the reaction will respect to `M` is

A

4

B

3

C

2

D

1

Text Solution

Verified by Experts

The correct Answer is:
B
`r=k[M]^(a)`
`(r')/(r ) ((2M)^(a))/((M)^(a))=8 rArr a=3`
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