Question

The isomerism exhibited by the given compounds below is

• A. Chain isomerism
• B. Position isomerism
• C. Functional isomerism
• D. Cyclic isomerism

Answer 1

The correct option is C

Functional isomerism

Compounds having the same molecular formula but different physical and chemical properties are called isomers. Propanol and Methoxy ethane are isomers as both have same molecular formula $C_3{H}_{8}O$

• Functional isomerism- Compounds having the same molecular formula but having a difference in their functional groups.
• Chain isomerism- Compound having the same molecular formula but the difference in the chain structure.
• Position isomerism- If the position of the functional group is different in the compound having the same molecular formula and same functional group.
• Cyclic isomerism- Compounds having the same molecular formula but a difference in the ring structure.

In Propanol and Methoxy ethane the functional group is different. Hence, they are functional isomers.