Understanding SN1, SN2, E1, and E2 Mechanisms

What is the primary factor in determining whether a reaction follows an SN1, SN2, E1, or E2 mechanism?

• The type of solvent used

• The strength of the nucleophile or base

• The temperature of the reaction

• The concentration of the reactants

Which of the following is a common weak nucleophile and weak base?

• Sodium ethoxide

• Hydroxide ion

• Methanol

• Ammonia

What type of reaction is most likely when using a strong nucleophile that is a weak base?

• E1

• SN2

• E2

• SN1

Which of the following is true about strong nucleophiles with a negative charge on oxygen?

• They are only strong bases

• They are only strong nucleophiles

• They can be both strong nucleophiles and strong bases

• They are neither strong nucleophiles nor strong bases

In the context of SN2 reactions, what is the significance of a backside attack?

• It stabilizes the transition state

• It causes the elimination of a leaving group

• It results in the inversion of configuration

• It leads to the formation of a carbocation

What is the major product when a bulky base is used in a reaction with a tertiary halide?

• SN1 product

• SN2 product

• E1 product

• E2 product

Which of the following bases is considered bulky and typically favors E2 reactions?

• Ammonia

• Sodium methoxide

• Tert-butoxide

• Water

When a strong nucleophile and strong base are used with a primary alkyl halide, which reaction is favored?

• SN2

• E2

• E1

• SN1

What is the expected outcome when a strong bulky base reacts with a secondary halide?

• SN1 reaction

• SN2 reaction

• E1 reaction

• E2 reaction

In an E2 reaction, what is the role of the beta hydrogen?

• It is eliminated to form a double bond

• It is replaced by the nucleophile

• It stabilizes the carbocation

• It acts as a nucleophile