Question Detail
Question
The compound B. below is H₃C H
\ /
C=C
/ \
H CH₃ [Text representation of an alkene]
Correct Answer
Option B is the correct answer.
Detailed Explanation
The structure is but-2-ene with two methyl groups on the same side of the double bond. In the Z (from German 'zusammen', meaning together) isomer, the higher priority groups (both CH₃) are on the same side.
Hint
Assign priorities using Cahn-Ingold-Prelog rules. If the higher priority groups are on the same side, it's Z.