Which of the following compounds can exhibit tautomeric isomerism?

Which of the following compounds can exhibit tautomeric isomerism?

Step 1: Understand what tautomeric isomerism is. It is when a compound can exist in two different forms that can easily convert into each other.
Step 2: Identify the types of forms involved in tautomeric isomerism. Typically, these are keto (carbonyl) and enol (alcohol) forms.
Step 3: Look at the compound in question, which is acetic acid (CH3COOH).
Step 4: Determine if acetic acid can exist in both keto and enol forms. Acetic acid can exist as a keto form (the original structure) and an enol form (where the double bond and hydroxyl group are rearranged).
Step 5: Conclude that since acetic acid can exist in both forms, it exhibits tautomeric isomerism.

No concepts available.