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NTA Abhyas NEET2020ChemistryChemical KineticsPractice

The rate constant of the reaction 2 H 2 O 2 a q ⟶ 2 H 2 O l + O 2 g i s 3 × 10 – 3 m i n - 1 At what concentration of H 2 O 2 , the rate of the reaction will be 2 × 10 – 4 M s – 1 ?

Options

  1. A6.67 × 10 – 3 M
  2. B2 M
  3. C4 M
  4. D0.08 M

Correct answer

C. 4 M

Step-by-step solution

- d H 2 O 2 d t = k H 2 O 2 1 ∴ 2 × 10 - 4 = 3 × 10 - 3 60 × H 2 O 2 o r H 2 O 2 = 4 M

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