The number of structural isomers of pentane is
5
4
2
3
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-2 – 2022
1. n-pentane (a straight chain of five carbon atoms).
2. Isopentane (2-methylbutane, a four-carbon chain with a methyl group attached to the second carbon).
3. Neopentane (2,2-dimethylpropane, a three-carbon chain with two methyl groups attached to the central carbon).