Which of the Following Statements About the Mechanism of the Diels-Alder

question 16

Multiple Choice

Which of the following statements about the mechanism of the Diels-Alder reaction is true?

• A) Three pi bonds break; two sigma bonds and one pi bond form.
• B) Three pi bonds break; one sigma bond and two pi bonds form.
• C) Two pi bonds break; one sigma bond and one pi bond form.
• D) Two pi bonds break; two sigma bonds and one pi bond form.

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Definitions:

Displacement

In psychology, a defense mechanism where an individual shifts negative feelings from their original source to a less threatening recipient.

Repression

A defense mechanism where distressing thoughts and memories are unconsciously kept out of conscious awareness.

Projection

A defense mechanism where individuals attribute their own undesirable thoughts, feelings, or motives onto someone else.

Defence Mechanism

Psychological strategies brought into play by individuals to protect themselves from unacceptable thoughts or feelings.