Which of the Following Statements About the Mechanism of Electrophilic

question 36

Multiple Choice

Which of the following statements about the mechanism of electrophilic aromatic substitution is not true?

• A)All electrophilic aromatic substitution reactions occur via a two-step mechanism.
• B)The transition state of the first step is lower in energy.
• C)The first step is the rate-determining step.
• D)The second step is the fast step.

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Definitions:

Variable Cost Per Unit

This is the cost that varies with each unit produced, including materials, labor, and other direct costs.

Total Fixed Costs

The sum of all costs that do not change with the level of output or activity within a certain period.

Cost-Volume-Profit Analysis

The examination of the relationships among selling prices, sales and production volume, costs, expenses, and profits.

Contribution Margin

The amount of revenue remaining after deducting variable costs, which contributes to covering fixed costs and generating profit.