Question

Addition of bromine to $1,3-butadiene$ gives:

• A. $1,2$ addition product
• B. $1,4$ addition product
• C. Both $1,2$ and $1,4$ addition products
• D. No reaction

Answer 1

The correct option is C Both $1,2$ and $1,4$ addition products

1,3-butadiene accompanies the bromine molecule to form two products.

They are 1,2-add products and 1,4-surplus products.

At low temperatures, the 1,2-pair is predominant but at higher temperatures, the 1,4-pair is predominant.Products A and B will be on this basis.