What is the role of a strong acid in the E1 and SN1 reactions?
Carbocation Rearrangement - Hydride and Methanide Shifts

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Chemistry, Science, Biology
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11th Grade - University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It stabilizes the carbocation.
It increases the reaction temperature.
It acts as a nucleophile.
It provides a good leaving group.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a hydride shift?
A shift of a water molecule.
A shift of a methyl group with a negative charge.
A shift of a hydrogen atom with a pair of electrons.
A shift of a hydrogen atom with a positive charge.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does a hydride shift occur?
To generate a more stable carbocation.
To neutralize the solvent.
To create a less stable carbocation.
To increase the reaction rate.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the expected product when a hydride shift occurs in the presence of water?
No reaction occurs.
A single SN1 product.
A racemic mixture of SN1 products.
Only E1 products.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a methanide shift?
A shift of a carbon atom with a positive charge.
A shift of a water molecule.
A shift of a methyl group with a negative charge.
A shift of a hydrogen atom with a positive charge.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What drives the rearrangement in methanide shifts?
Temperature
Pressure
Thermodynamics
Kinetics
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the carbocation after a methanide shift?
It becomes more stable.
It becomes less stable.
It remains unchanged.
It disappears.
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