Question:
The number of possible stereoisomers of the compound CH$_3$–CH=CH–CH$_3$ is
The number of possible stereoisomers of the compound CH$_3$–CH=CH–CH$_3$ is
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Double bond + different groups ⇒ cis-trans isomerism.
Updated On: May 2, 2026
- 2
- 4
- 3
- 5
- 6
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Concept: Geometrical isomerism in alkenes
---
Step 1: Identify type of compound
• Alkene → possible geometrical isomerism ---
Step 2: Check substituents
Each carbon of double bond has:
• One H and one CH$_3$ Thus, geometrical isomerism is possible. ---
Step 3: Possible isomers
• cis-form (Z)
• trans-form (E) ---
Step 4: Count
\[ \text{Total stereoisomers} = 2 \] --- Final Answer: \[ \boxed{2} \]
---
Step 1: Identify type of compound
• Alkene → possible geometrical isomerism ---
Step 2: Check substituents
Each carbon of double bond has:
• One H and one CH$_3$ Thus, geometrical isomerism is possible. ---
Step 3: Possible isomers
• cis-form (Z)
• trans-form (E) ---
Step 4: Count
\[ \text{Total stereoisomers} = 2 \] --- Final Answer: \[ \boxed{2} \]
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