# NEET Chemistry Chemical Kinetics Questions Solved

The following mechanism has been proposed for the reaction of NO with Br2 to form NOBr:

NO(g) + Br2(g) $⇌$ NOBr2(g)

NOBr2(g) + NO(g) $\to$2NOBr(g)

If the second step is the rate determining step, the order of the reaction with respect to NO(g) is:

(a) 1

(b) 0

(c) 3

(d) 2

(d) r = K[NO][NOBr2]

Kc = [NOBr2]2 /[NO][Br2]

r = K[NO]2[Br2]xKc = K'[NO]2[Br2]

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