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The following mechanism has been propsoe...

The following mechanism has been propsoed for the reaction of NO with `Br_(2)` to form NOBr.
`NO(g) +Br_(2)(g) hArr NOBr_(2)(g),`
`NOBr_(2)(g) +NO(g) rarr 2NOBr(g)" "` (slow step)
If the second step is the rate determining step, the order of the reaction with respect to NO(g) is:

A

0

B

3

C

2

D

1

Text Solution

Verified by Experts

The correct Answer is:
C
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The reaction 2NO + Br_(2) to 2NOBr , obeys the following mechanism: NO + Br_(2) overset("fast")(hArr) NOBr_(2), NOBr_(2) + NO overset("Slow")(to) 2NOBr The rate expression of the above reaction can be written as

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MOTION-Chemical Kinetics-Exercise - 4 (Level - I)
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