Question

Define position isomerism and functional isomerism.Give example

Answer 1

when two or more compounds with the same molecular formula differ in the position of substitient atom or functional group of carbon atom , they are called positional isomers.

ex. but-1-yne and but-2-yne

when two or more compounds with same molecular formula but diff functional groups are called functional isomers.

ex. ethanol and dimethyl ether

Answer 2

Position isomerism: When the same molecular formula represents two or more compounds which differ in the position of the same functional group, then such compounds are called position isomers and the phenomenon is called position isomerism. For example,






Functional isomerism: When the same molecular formula represents two or more compounds which differ in the presence of different functional groups, then such compounds are called functional isomers and the phenomenon is called functional isomerism. For example.