Question

Choose the correct statement about the major product formed in $E_2$ reaction ?

• A. The major product will be optically active
• B. The major product will be trans-3-Methyl-2-pentene
• C. The major product will be cis-3-Methyl-2-pentene
• D. The major product will be 3-Methyl-1-pentene

Answer 1

Answer: (B)

The given alkyl bromide can be rotated to give the following conformer in which $H$ and $Br$ are antiplanar.