How many chain isomers are shown by C5H12 ?
Correct answer: A. 3
- A. 3
- B. 4
- C. 5
- D. 6
Explanation
This is the correct answer. Chain isomers have the same molecular formula but differ in the arrangement of their carbon atoms.For the molecular formula C5H12, there are three possible chain isomers: n-pentane: A straight chain of five carbon atoms. 2-methylbutane: A branched chain with four carbon atoms and a methyl group (CH3) attached to the second carbon. 2,2-dimethylpropane: A branched chain with three carbon atoms and two methyl groups attached to the second carbon. It's important to note that these are the only possible chain isomers for C5H12. There are no other unique arrangements of carbon atoms that can be formed while maintaining the same molecular formula.Therefore, the number of chain isomers shown by C5H12 is 3.
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Organic chemistry begins with carbon compounds classified by carbon skeleton, saturation and functional group. Work includes identifying groups such as hydroxyl, carbonyl, carboxyl and amino, applying basic nomenclature, and distinguishing structural, geometric and optical isomers, where the same molecular formula does not necessarily mean the same structure or properties.
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