Which of the following compounds is an example of structural isomerism?

Which of the following compounds is an example of structural isomerism?

Step 1: Understand what structural isomerism means. It refers to compounds that have the same molecular formula but different arrangements of atoms.
Step 2: Look at the molecular formula C4H10. This means the compound has 4 carbon atoms and 10 hydrogen atoms.
Step 3: Identify the possible structures for C4H10. There are two main structures: butane (a straight chain of 4 carbon atoms) and isobutane (a branched structure with 3 carbon atoms in a chain and 1 carbon atom attached).
Step 4: Confirm that butane and isobutane have the same molecular formula (C4H10) but different structures, which makes them structural isomers.

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