The correct option for the rate law that corresponds to overall first order reaction is [2023]

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Solution

Q.
The correct option for the rate law that corresponds to overall first order reaction is [2023]

1 Rate $= k {[A]}^{0}$ ${[B]}^{2}$

2 Rate $= k [A] [B]$

3 Rate $= k {[A]}^{1 / 2}$ ${[B]}^{2}$

4 Rate $= k {[A]}^{- 1 / 2} {[B]}^{3 / 2}$

Ans.
(4)

$r = k {[A]}^{- 1 / 2} {[B]}^{3 / 2}$

Order $= - \frac{1}{2} + \frac{3}{2} = \frac{2}{2} = 1$

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