Question

Which of the following is true for isomerism in alkanes?

• A. The number of isomers increases with the increase in number of carbon atoms.
• B. The number of isomers decreases with the increase in number of carbon atoms.
• C. The number of isomers is independent of the number of carbon atoms.
• D. None of the above

Answer 1

The correct option is A The number of isomers increases with the increase in number of carbon atoms.

The number of isomers increases with the increase in the number of carbon atoms.
For example, butane, pentane, hexane and heptane have 2,3,5 and 9 isomers respectively.