NEET UG CHEMISTRY MCQ: CHEMICAL KINETICS

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Analyzing +4 | -1

A reaction,

{A_2} + {B_2} \to 2AB

occurs by the following mechanism;

{A_2} \to A + A

……(Slow)

A + {B_2} \to AB + B

…..(Fast)

A + B \to AB

......(Fast)
Its order would be:

View answer and explanation

Correct option: B

Option B (1) is correct because the rate-determining step is the slow step, which involves only A2, making the reaction first order overall.

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