Asked in PMC Practice Test 33 (2021) 2021

Rate equation for the hydrolysis of Tertiary Butyl Bromide is independent of concentration of water as a reactant because?

Correct answer: D. Both A and B

  • A. It's in excess
  • B. It's a solvent
  • C. It's a solute
  • D. Both A and B

Explanation

A Pseudo first-order reaction can be defined as a second-order or bimolecular reaction that is made to behave like a first-order reaction. This reaction occurs when one reacting material is present in great excess or is maintained at a constant concentration compared with the other substance.Therefore, option d is correct because the rate equation for hydrolysis of tertiary butyl bromide is independent of the concentration of water as a reactant as it's a solvent and present in excess. The rest options are incorrect.

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About Order of Reaction

Reaction order shows how the rate depends on the concentration of each reactant, as expressed in the rate law. Coverage includes zero, first and second-order reactions, integrated rate equations, half-life, units of rate constants and the distinction between overall order and molecularity.

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