A reaction A2 + B2 → 2AB occurs by the following mechanism:A → A + A … (slow)A + B2 → AB + B . . . (fast)A + B → AB . . . (fast)Its order would be

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3/2

Zero

answer is B.

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Detailed Solution

Slowest step isA2 → A+A (slow)Hence, r = k[A2]Therefore, order = 1

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