A hypothetical reaction A2 + B2 -> 2AB Follows mechanism as given below: A2 β A + A.............(fas β AITS & Test Series Chemistry Question
Question
A hypothetical reaction A2 + B2 -> 2AB Follows mechanism as given below: A2 β A + A.............(fast) with kf and kb A + B2 -> AB + B.............(slow) with k1 A + B -> AB.............(fast) with k2 The order of overall reaction is

Answer: C
π‘ Solution & Explanation
οοο ο 2 r k A B ο½ & c k ο½ οοοο ο ο 2 A A A οο ο ο 1/2 1/2 2 A K A ο ο½ Thus ο οο ο ο οο ο 1/2 1/2 1/2 c 2 2 2 2 r = K.K A B = Kβ A B Hence order reaction s 3/2
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