What is the major product when propene reacts with HBr?
Practice Questions
Q1
What is the major product when propene reacts with HBr?
1-Bromopropane
2-Bromopropane
Propyl bromide
Bromopropene
Questions & Step-by-Step Solutions
What is the major product when propene reacts with HBr?
Correct Answer: 2-Bromopropane
Step 1: Identify the reactants. We have propene (C3H6) and HBr (hydrobromic acid).
Step 2: Understand the structure of propene. Propene has a double bond between the first and second carbon atoms.
Step 3: Apply Markovnikov's rule. This rule states that when HX (like HBr) adds to an alkene, the hydrogen (H) will attach to the carbon with more hydrogen atoms already (the less substituted carbon).
Step 4: Determine where H and Br will add. In propene, the first carbon has 2 hydrogens and the second carbon has 1 hydrogen. So, H will attach to the first carbon.
Step 5: Attach Br to the second carbon. After H attaches to the first carbon, Br will attach to the second carbon, forming 2-Bromopropane.
Step 6: Conclude the major product. The major product of the reaction is 2-Bromopropane.
