What is the product of the reaction between 1-pentene and HBr?
Practice Questions
Q1
What is the product of the reaction between 1-pentene and HBr?
1-bromopentane
2-bromopentane
3-bromopentane
4-bromopentane
Questions & Step-by-Step Solutions
What is the product of the reaction between 1-pentene and HBr?
Step 1: Identify the reactants. We have 1-pentene, which is an alkene, and HBr, which is hydrogen bromide.
Step 2: Understand that alkenes react with HBr through an addition reaction.
Step 3: Apply Markovnikov's rule, which states that when HBr adds to an alkene, the hydrogen (H) will attach to the carbon with the most hydrogen atoms already (the less substituted carbon).
Step 4: In 1-pentene, the double bond is between the first and second carbon. The first carbon has 2 hydrogens, and the second carbon has 1 hydrogen.
Step 5: According to Markovnikov's rule, the hydrogen from HBr will attach to the first carbon, and the bromine (Br) will attach to the second carbon.
Step 6: This results in the formation of 2-bromopentane, where the Br is on the second carbon.
