What type of isomerism is exhibited by the following equilibrium ?
` CH_3 - overset(O ) overset(||) C-CH_3 hArr CH_3 - overset(OH) overset(|) CH =CH_2`

Explanation

To determine the type of isomerism exhibited by the given equilibrium, we need to analyze the two compounds involved:

1. **Identify the Structures**:
- The first compound is a ketone (specifically, 2-butanone), which can be represented as:
\[ CH_3 - C(=O) - CH_2 - CH_3 \]
- The second compound is an enol (specifically, 2-buten-1-ol), which can be represented as:
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