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AP EAMCET2012ChemistryChemical Kinetics

Which one of the following statements is correct for the reaction?

Options

  1. AOrder is two but molecularity is one
  2. BOrder is one but molecularity is two
  3. COrder is one but molecularity is one
  4. DOrder is two but molecularity is two

Correct answer

D. Order is two but molecularity is two

Step-by-step solution

For the reaction, aligned & CH ₃ COOC ₂ H ₅(a q)+ NaOH (a q) & CH ₃ COONa (a q)+ C ₂ H ₅ OH (a q) aligned the molecularity is two because two molecules are taking part. Moreover, rate law for the reaction is, rate (r)=k [ CH ₃ COOC ₂ H ₅ ][ NaOH ] Order of reaction is 1+1=2

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