Which are functional isomers :-A B C D All of the

To determine which compounds are functional isomers, we need to compare their molecular structures and identify any differences in the functional groups present.

Functional isomers are compounds that have the same molecular formula but differ in the arrangement or connectivity of atoms, leading to different functional groups.

Let's analyze each option:

Option A: We need to examine the molecular structure of compound A and identify its functional groups.

Option B: Similarly, we need to analyze the molecular structure of compound B and identify its functional groups.

Option C: We need to examine the molecular structure of compound C and identify its functional groups.

Option D: Lastly, we need to analyze the molecular structure of compound D and identify its functional groups.

By comparing the functional groups present in each compound, we can determine if any of them are functional isomers.