Answer:
See explanation and image attached
Explanation:
The formula here is C4H10.
When we talk about constitutional isomers, constitutional isomers are compounds having the same molecular formula but different atom-to-atom connectivity.
The two main constitutional isomers of the formula C4H10 are butane and 2-methylpropane (iso-butane). The both structures are shown in the image attached.
Image credit: socratic
