Addition of bromine on propene in the presence of brine yields a mixtu...


Nucleophilic attack in step-ll occur at the carbon atom which can better accommodate the positive charge. Hence, attack of Br
- or Cl
- in second step occur at 2° carbon rather that at 1° carbon.
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Addition of bromine on propene in the presence of brine yields a mixtu...
Addition of Bromine on Propene in the Presence of Brine
The addition of bromine on propene in the presence of brine is a type of electrophilic addition reaction. This reaction yields a mixture of two different products. Let's discuss the products in detail.
Products Obtained:
The products obtained from the addition of bromine on propene in the presence of brine are:
1. CH3CHCICH2CI
2. CH3CHBrCH2CI
Explanation:
When propene reacts with bromine in the presence of brine, the bromine molecule is polarized, and the electrophilic addition of Br2 takes place. The reaction takes place in two steps:
Step 1: The π-bond of the propene molecule attacks the bromine molecule, and the double bond is broken.
Step 2: The bromine ion formed in the previous step attacks another propene molecule, and a product is formed.
The products formed are:
1. CH3CHCICH2CI: This product is formed when the bromine ion attacks the carbon atom that has more hydrogen atoms attached to it.
2. CH3CHBrCH2CI: This product is formed when the bromine ion attacks the carbon atom that has fewer hydrogen atoms attached to it.
Conclusion:
Thus, the addition of bromine on propene in the presence of brine yields a mixture of CH3CHCICH2CI and CH3CHBrCH2CI.
Addition of bromine on propene in the presence of brine yields a mixtu...
Answer is b fir sure as 1 br will be atleast there in the product