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NTA Abhyas NEET2020ChemistryChemical KineticsPractice

If doubling the concentration of a reactant 'A' increases the rate 4 times and tripling the concentration of 'A' increases the rate 9 times, the rate is proportional to

Options

  1. AConcentration of ‘A’
  2. BSquare of concentration of ‘A’
  3. CUnder root of the concentration of ‘A’
  4. DCube of concentration of ‘A’

Correct answer

B. Square of concentration of ‘A’

Step-by-step solution

Based on rate law, rate of reaction depends on concentration of reactant with power of concentration term same as order of reactant. R a t e = A n B m A n = 2 2 = 4 , B m = 3 2 = 9

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