Question

9. How many different isomers are possible for a hydrocarbon with the molecular formula C₄H₁₀?

• A. 1
• B. 2
• C. 3
• D. 5

Answer 1

The correct option is B

2

Explanation:

• Compounds having the same molecular formula but distinct arrangements of atoms are known as isomers, this phenomenon is called isomerism.
• ${\mathrm{C}}_4{\mathrm{H}}_{10}$ has two isomers. Among these, “n-Butane” is a straight-chained compound while “2-Methylpropane” (isobutane) is the branched-chain isomer.
• The two isomer structures are:
• 

Hence, the correct option is (B) 2 isomers.