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Which reaction mechanism is primarily involved in the addition of HBr to an alke
Which reaction mechanism is primarily involved in the addition of HBr to an alkene?
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Practice Questions
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Q1
Which reaction mechanism is primarily involved in the addition of HBr to an alkene?
Electrophilic addition
Nucleophilic substitution
Radical substitution
Elimination
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The addition of HBr to an alkene occurs via an electrophilic addition mechanism.
Questions & Step-by-step Solutions
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Q
Q: Which reaction mechanism is primarily involved in the addition of HBr to an alkene?
Solution:
The addition of HBr to an alkene occurs via an electrophilic addition mechanism.
Steps: 6
Show Steps
Step 1: Identify the alkene, which is a molecule with a carbon-carbon double bond.
Step 2: Recognize that HBr is a strong acid that can donate a proton (H+).
Step 3: Understand that the double bond in the alkene acts as a nucleophile, meaning it can donate electrons.
Step 4: The H+ from HBr attacks one of the carbon atoms in the double bond, forming a carbocation (a positively charged carbon).
Step 5: The Br- ion (the bromide ion) then attacks the carbocation, resulting in the addition of Br to the alkene.
Step 6: The final product is an alkyl bromide, where H and Br are added across the double bond.
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