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BITSAT2019ChemistryChemical KineticsActual

Given the hypothetical reaction mechanism A ⟶ I B ⟶ II C ⟶ III D → IV E and the rate as Species formed Rate of its information B 0 . 002 mol / h per mole of A C 0 . 030 mol / h per mole of B D 0 . 011 mol / h per mole of C E 0 . 420 mol / h per mole of D The rate determining step is

Options

  1. Astep I
  2. Bstep II
  3. Cstep III
  4. Dstep IV

Correct answer

A. step I

Step-by-step solution

Among the formation of B ,   C ,   D and E , the slowest step is the rate determining step. As formation of B , i.e. 0 . 002   mol / h per mole of A is the slowest step. Hence, step- I is the rate determining step.

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