Which of the Following Mechanistic Steps Do You Expect in Bromination

question 51

Multiple Choice

Which of the following mechanistic steps do you expect in bromination of benzene with Br₂ and FeBr₃ as a catalyst?
I. Formation of Br+[FeBr4]-
II. Attack of [FeBr4]- on benzene ring
III. Formation of arenium ion
IV. Deprotonation of arenium ion
V. Nucleophilic attack of Br+

• A) I), III), and IV)
• B) I), II), and IV)
• C) II), III), and V)
• D) III), IV), and V)
• E) II), IV), and V)

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Definitions:

Actor/observer Bias

A cognitive bias that explains differences in how people attribute causes to their own versus others' behavior; typically attributing one's own actions to situational factors and others' actions to personal characteristics.

Internal Attributions

Explanations for people's behaviors based on their internal characteristics, such as personality traits, motives, or attitudes, as opposed to the influence of external circumstances.

External Attributions

The process of assigning the cause of a behavior or event to factors outside the individual, such as situational or environmental influences.

Causal Explanation

An assertion or theory that attempts to explain the cause of a particular event or phenomenon, establishing one factor as leading to the effect of another.