JAMB - Chemistry (2003 - No. 39)
How many isomers does pentane have?
6
5
4
3
Giải thích
Isomers are chemical compounds with the same Molecular formula but different structural formula or arrangements of atoms in the molecule.
Pentane, an organic compound with the chemical formula C\(_5\)H\(_{12}\), has three structural isomers:
- n-pentane: A straight chain of five carbon atoms
- 2-methylbutane: A four-carbon chain with a methyl group branching off the second carbon atom
- 2,2-dimethylpropane: A three-carbon chain with two methyl groups branching off the middle carbon atom