Question

Which one of the following compound hydrocarbons can show isomerism?

• A. C₂H₄
• B. C₂H₆
• C. C₃H₈
• D. C₄H₁₀

Answer 1

The Correct Option is D

Isomerism occurs when compounds have the same molecular formula but different structural arrangements. Among the given options:

• \( \text{C}_2\text{H}_4 \): Ethene, a simple alkene with no possibility of isomerism.
• \( \text{C}_2\text{H}_6 \): Ethane, a simple alkane with no possibility of isomerism.
• \( \text{C}_2\text{H}_8 \): Not a valid hydrocarbon formula (violates the general formula \( \text{C}_n\text{H}_{2n+2} \)).
• \( \text{C}_4\text{H}_{10} \): Butane, which can exhibit structural isomerism (e.g., n-butane and isobutane).

 

Final Answer: The compound that can show isomerism is \( \mathbf{\text{C}_4\text{H}_{10}} \), which corresponds to option \( \mathbf{(4)} \).