Which of the following are correct structural isomers of butane

• GC Carbon Compounds

Which of the following are correct structural isomers of butane?

1. (i) and (iii)
2. (ii) and (iv)
3. (i) and (ii)
4. (iii) and (iv)

Answer

Structural isomers have same molecular formula but different parent chain of carbon atoms in the molecule.

The correct option is A.