Hydration of which of the given compounds leads to the formation of 2-methylpropan-2-ol?

Options

A. 2-methylpropane
B. 1-bromopropane
C. 2-methylpropene
D. Propene

Answer

To determine which compound's hydration leads to the formation of 2-methylpropan-2-ol, we need to analyze the process of hydration of alkenes and identify the correct alkene.

### Step-by-Step Solution:

1. **Understanding Hydration of Alkenes**:
- Hydration of alkenes involves the addition of water (H₂O) across the double bond of the alkene. This reaction typically requires an acid catalyst, such as sulfuric acid (H₂SO₄).

2. **Identifying the Target Compound**:
- The target compound is 2-methylpropan-2-ol, which has the following structure:
- It is a tertiary alcohol, meaning that the carbon atom bonded to the hydroxyl group (–OH) is attached to three other carbon atoms.

3. **Finding the Corresponding Alkene**:
- To form 2-methylpropan-2-ol through hydration, we need to identify the alkene that, when hydrated, will yield this alcohol.
- The structure of 2-methylpropan-2-ol indicates that it is derived from the alkene 2-methylpropene (also known as isobutylene).

4. **Hydration Reaction**:
- The hydration reaction can be represented as follows:
- 2-methylpropene + H₂O → 2-methylpropan-2-ol
- This reaction occurs through the formation of a carbocation intermediate, which is stabilized due to the tertiary nature of the carbocation formed from 2-methylpropene.

5. **Conclusion**:
- Therefore, the compound whose hydration leads to the formation of 2-methylpropan-2-ol is **2-methylpropene**.