Which of the following is the correct mechanism for the addition of HBr to prope

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Question: Which of the following is the correct mechanism for the addition of HBr to propene?

Options:

Correct Answer: Electrophilic addition

Solution:

The addition of HBr to propene occurs via an electrophilic addition mechanism.

Which of the following is the correct mechanism for the addition of HBr to propene?

Which of the following is the correct mechanism for the addition of HBr to propene?

Step 1: Identify the reactants. We have propene (a type of alkene) and HBr (hydrobromic acid).
Step 2: Understand that propene has a double bond between two carbon atoms.
Step 3: Recognize that HBr can donate a proton (H+) and a bromide ion (Br-).
Step 4: The double bond in propene acts as a nucleophile and attacks the proton (H+) from HBr.
Step 5: This attack forms a carbocation (a positively charged carbon) on the more stable carbon atom.
Step 6: The bromide ion (Br-) then attacks the carbocation, forming the final product.
Step 7: The final product is an alkyl bromide, where the bromine is added to the carbon that was not bonded to the hydrogen.

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