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Q.

For the reaction H₂ + Br₂ $\to$ 2HBr, the rate expression is, rate = K [H₂] [Br₂]^1/2 which statement is true about this reaction

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a

The reaction is of second order

b

Order of the reaction is 3/2

c

The unit of K is sec^–1

d

Molecularity of the reaction is 2

answer is B.

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Detailed Solution

Order of reaction = sum of the powers of the conc. of reactants in raate equation = $1 + \frac{1}{2} = \frac{3}{2}$

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