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AP Chemistry 5.7 Introduction to Reaction Mechanisms Question Bank

Practise AP Chemistry 5.7 mechanism questions by connecting elementary steps, net reactions, intermediates and catalyst behaviour.

Syllabus
Effective Fall 2024
Course
AP Chemistry

Exam points

  • classify intermediates and catalysts from their appearances across elementary reaction steps
  • evaluate whether a proposed mechanism matches the overall stoichiometry and energy profile

Covered syllabus points

5.7.A—Identify the components of a reaction mechanism

5.7 Introduction to Reaction Mechanisms question 1

Answer the following questions about C2H4O\mathrm{C}_{2} \mathrm{H}_{4} \mathrm{O}.

(h) In the reverse reaction, the conversion of compound Z to compound X is catalyzed in the presence of trace amounts

of water. The catalyzed reaction is proposed to occur via the following two-step mechanism.

Step 1: \(\mathrm{Z}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{Y}\) (slow)

Step 2: \(\mathrm{Y} \rightarrow \mathrm{X}+\mathrm{H}_{2} \mathrm{O}\) (fast)

i. Identify the intermediate in the mechanism, if any.

Figure for Question 5.7 Introduction to Reaction Mechanisms question 1 — AP Chemistry
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