In an addition reaction involving alkenes, what is the product when HBr is added
Practice Questions
Q1
In an addition reaction involving alkenes, what is the product when HBr is added to propene?
1-bromopropane
2-bromopropane
Propyl bromide
Bromopropane
Questions & Step-by-Step Solutions
In an addition reaction involving alkenes, what is the product when HBr is added to propene?
Step 1: Identify the alkene. In this case, the alkene is propene, which has the formula C3H6.
Step 2: Understand that HBr is a hydrogen halide that will add across the double bond of the alkene.
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 propene, 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 (C1), and the bromine (Br) will attach to the second carbon (C2).
Step 6: Write the product. The product formed is 1-bromopropane, which has the formula C3H7Br.
