What is the role of the base in the E2 reaction mechanism?
E2 on Cyclic Systems

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Physics, Science, Chemistry
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To form a π bond
To stabilize the leaving group
To donate a proton
To extract a proton
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why must the proton being extracted and the leaving group be in anti conformation?
To minimize steric hindrance
To maximize orbital overlap for π bond formation
To increase the reaction rate
To stabilize the intermediate
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a linear system, why is it acceptable for the methyl group to be anti to the bromine at any given instant?
Because the bromine is not a good leaving group
Because the methyl group is not involved in the reaction
Because the system can rotate to achieve the correct conformation
Because the reaction is reversible
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In cyclic systems, why must both the leaving group and the proton be axial for elimination to occur?
To stabilize the cyclic structure
To achieve the necessary anti conformation
To allow for constant rotation
To ensure they are in the same plane
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What determines which chair conformation will promote elimination in cyclic systems?
The presence of a catalyst
The axial position of the leaving group and protons
The temperature of the reaction
The size of the substituents
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