NEET UG CHEMISTRY MCQ: CHEMICAL KINETICS

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Analyzing +4 | -1

A hypothetical reaction

{A_2} + {B_2} \to 2AB

follows the mechanism as given below,

{A_2}\;\leftrightharpoons\;A + A\left( {fast} \right)

A + {B_2} \to AB + B(slow)

A + B \to AB\left( {fast} \right)

The order of the overall reaction is

View answer and explanation

Correct option: C

1\frac{1}{2}

Option C (

1\frac{1}{2}

) is correct because the rate law is determined by the slow step and the equilibrium of the fast step.

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