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

Practice Questions

Q1
Which of the following is the correct mechanism for the addition of HBr to propene?
  1. Electrophilic addition
  2. Nucleophilic substitution
  3. Radical substitution
  4. Elimination

Questions & Step-by-Step Solutions

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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