For the reaction : `H_(2(g)) + Br_(2(g)) rarr 2HBr_((g))`, the experimental data suggests, rate =` k [H_2][Br_2]^(1//2)`. The molecularity and order of the reaction is

Options

A. 2 and 2 respectively
B. 2 and 1`1/2` respectively
C. 1`1/2` and 2 respectively
D. 1`1/2` and 1`1/2` respectively

Answer

B

Explanation

Molecularity is two as two molecules are participating in the reaction. Order of reaction = `1+1/2=11/2`