Understanding E2 Reactions

The video tutorial explains the reaction of 2-chlorobutane with sodium methoxide in methanol. It covers the naming of the compound, the properties of sodium methoxide as a strong base, and the detailed mechanism of the reaction. The process involves electron transfer, proton abstraction, and the formation of a double bond, resulting in an alkene. The tutorial concludes with an explanation of the E2 reaction, highlighting the elimination process and comparing it with Sn2 reactions.

What is the name of the compound formed when 2-chlorobutane reacts with sodium methoxide in methanol?

• Butanone

• 2-Butene

• Butane

• 2-Butanol

What is the role of sodium methoxide in the reaction with 2-chlorobutane?

• It acts as an acid.

• It acts as a strong base.

• It acts as a nucleophile.

• It acts as a solvent.

In the E2 reaction mechanism, what happens to the electron from the methoxide ion?

• It is transferred to the chlorine atom.

• It is transferred to a hydrogen atom.

• It is transferred to the sodium ion.

• It is transferred to the solvent.

What type of bond is formed in the product of the E2 reaction?

• Double bond

• Single bond

• Triple bond

• Ionic bond

What is the leaving group in the E2 reaction of 2-chlorobutane?

• Sodium ion

• Chloride ion

• Hydrogen ion

• Methoxide ion

What does the '2' in E2 reaction signify?

• Two bonds broken

• Two products formed

• Two reactants involved in the rate-determining step

• Two steps in the reaction

How does the E2 reaction differ from the Sn2 reaction?

• E2 involves elimination, Sn2 involves substitution.

• E2 involves a nucleophile, Sn2 does not.

• E2 involves two steps, Sn2 involves one step.

• E2 involves substitution, Sn2 involves elimination.

What is the main characteristic of an E2 reaction?

• It requires a catalyst.

• It involves simultaneous bond breaking and forming.

• It occurs in two distinct steps.

• It involves a carbocation intermediate.

Which of the following is true about the E2 reaction mechanism?

• It is slower than E1 reactions.

• It requires a polar protic solvent.

• It is a concerted reaction.

• It involves a carbocation intermediate.

What future topic is hinted at the end of the video?

• E3 reactions

• Sn3 reactions

• E1 reactions

• Sn1 reactions