Which of the following compounds is a structural isomer of C4H10?

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Q: Which of the following compounds is a structural isomer of C4H10?

Solution: 2-methylpropane is a structural isomer of butane, both having the same molecular formula C4H10.

Steps: 5

Step 1: Understand what a structural isomer is. Structural isomers are compounds that have the same molecular formula but different arrangements of atoms.
Step 2: Identify the molecular formula given in the question, which is C4H10.
Step 3: List the possible structural isomers for C4H10. The two main ones are butane and 2-methylpropane.
Step 4: Recognize that butane has a straight-chain structure, while 2-methylpropane has a branched structure.
Step 5: Conclude that 2-methylpropane is a structural isomer of butane because they both have the same molecular formula C4H10 but different structures.