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The half-life period for catalytic decomposition of AB 3 at 50 mm is found to be 4 hrs and at 100 mm it is 2 hrs. The order of the reaction is:

Options

  1. A3
  2. B1
  3. C2
  4. D0

Correct answer

C. 2

Step-by-step solution

t 1 2 ∝ a 1 - n t 1 t 2 = a 1 a 2 1 - n 4 2 = 50 100 1 - n n= 2 Therefore,the order of reaction is 2.

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