Which of the following compounds is reacted with propanone for obtaining bisphenol-A ?

Options

A. `C_(6) H_(5) NO_(2)`
B. `C_(6) H_(5) OH`
C. `C_(6)H_(5)NH_(2)`
D. `C_(6)H_(5)CH_(3)`

Answer

To determine which compound reacts with propanone to obtain bisphenol-A, we need to analyze the options provided and understand the structure of bisphenol-A.

### Step-by-Step Solution:

1. **Identify the Structure of Bisphenol-A**:
- Bisphenol-A is characterized by having two phenolic groups (–OH) attached to a carbon chain. Its structure can be represented as:
\[ \text{(CH}_3\text{)C(OH)(C}_6\text{H}_5\text{OH)}_2 \]
- This indicates that bisphenol-A has two phenol groups attached to a central carbon atom that also has two methyl groups.

2. **Analyze the Given Options**:
- The options provided are:
1. C6H5NO2 (Nitrophenol)
2. C6H5OH (Phenol)
3. C6H5NH2 (Aniline)
4. C6H5CH3 (Toluene)

3. **Determine the Reactivity with Propanone**:
- **C6H5NO2 (Nitrophenol)**: The nitro group is electron-withdrawing, which would hinder the formation of bisphenol-A.
- **C6H5OH (Phenol)**: Phenol has an –OH group that can react with propanone to form bisphenol-A.
- **C6H5NH2 (Aniline)**: The amino group would replace the –OH group in the final product, thus not forming bisphenol-A.
- **C6H5CH3 (Toluene)**: The methyl group would also replace the –OH group, resulting in a compound that is not bisphenol-A.

4. **Conclusion**:
- The only compound that can react with propanone to yield bisphenol-A is **C6H5OH (Phenol)**.

### Final Answer:
The compound that reacts with propanone to obtain bisphenol-A is **C6H5OH (Phenol)**.

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