Final answer:
There are two constitutional isomers with the formula C₄H₁₀0.
Step-by-step explanation:
Constitutional isomers are compounds that have the same molecular formula but different structural formulas. To determine the number of constitutional isomers, we need to analyze the arrangement of atoms and bonds in the molecule. For the formula C₄H₁₀0, we can generate different structures by rearranging the carbon-carbon bonds and the carbon-hydrogen bonds. By analyzing the different possibilities, we find that there are two constitutional isomers with the formula C₄H₁₀0.