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COMEDK2013ChemistryChemical Kinetics

For a reaction A+B C+D , if concentration of A is doubled without altering that of B , rate doubles. If concentration of B is increased nine-times without altering that of A , rate triples. Order of the reaction is

Options

  1. A2
  2. B1
  3. C1 1 2
  4. D1 1 3

Correct answer

C. 1 1 2

Step-by-step solution

If [A] double's then, r_ l =2 r If [B] increased 9 times then, r₂=3 r Order w.r.t. A is 1 and order w.r.t B is 1 2 . Order of reaction =1+ 1 2 =1 1 2 .

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