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For the reaction 2NO(2)+F(2)rarr 2NO(2)F...

For the reaction `2NO_(2)+F_(2)rarr 2NO_(2)F`, following mechanism has been provided:
`NO_(2)+F_(2) overset("slow")(rarr) NO_(2)F+F`
`NO_(2)+Foverset("fast")(rarr) NO_(2)F`
Thus rate expression of the above reaction can be writtens as:

A

`r=K[NO_(2))]^(2)[F_(2)]`

B

`r=K[NO_(2)][F_(2)]`

C

`r=k [NO_(2)]`

D

`r=k [F_(2)]`

Text Solution

Verified by Experts

The correct Answer is:
B
Slowest step is the rate determining step ,
`r=K[NO_(2)][F_(2)]`
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