Acetone and propen-2-ol are

Options

A. enantiomers
B. keto-enol tautomers
C. diastereoisomers
D. meso compounds

Answer

To determine the relationship between acetone and propene-2-ol, we need to analyze their structures and functional groups. Here’s a step-by-step solution:

### Step 1: Identify the Structures
- **Acetone**: The chemical formula for acetone is \( \text{CH}_3\text{C(=O)}\text{CH}_3 \). It is a ketone with a carbonyl group (C=O) flanked by two methyl groups (CH3).
- **Propene-2-ol**: The chemical formula for propene-2-ol is \( \text{CH}_3\text{C(OH)}\text{=CH}_2 \). It contains a hydroxyl group (OH) and a double bond between the second and third carbon atoms.

### Step 2: Analyze Functional Groups
- Acetone has a **keto** functional group (C=O).
- Propene-2-ol has an **alcohol** functional group (OH) and a **double bond** (C=C).

### Step 3: Identify the Relationship
- The keto form (acetone) can convert to the enol form (propene-2-ol) through tautomerization. This process involves the movement of a hydrogen atom and the shift of a double bond.
- In this case, the hydrogen atom from the alpha carbon (the carbon adjacent to the carbonyl carbon) of acetone can shift to the oxygen atom, resulting in the formation of propene-2-ol.

### Step 4: Conclusion
- Acetone and propene-2-ol are **keto-enol tautomers**. This means they are two forms of the same compound that can interconvert through the movement of a hydrogen atom and the shift of a double bond.

### Final Answer
Acetone and propene-2-ol are **keto-enol tautomers**.

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