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 can follow these steps:

### Step 1: Identify the structure of propanone
Propanone, also known as acetone, has the chemical formula CH3COCH3. It consists of a carbonyl group (C=O) flanked by two methyl groups (CH3).

### Step 2: Understand the target product, bisphenol-A
Bisphenol-A (BPA) is a compound that contains two phenolic (aromatic) groups connected by a carbon bridge. Its structure can be represented as:
```
OH
|
C6H5 - C - C6H5
|
OH
```
This indicates that bisphenol-A is derived from phenol (C6H5OH).

### Step 3: Determine the reacting compound
To synthesize bisphenol-A from propanone, we need to react it with phenol. The reaction involves using two moles of phenol (C6H5OH) to produce bisphenol-A in the presence of an acid catalyst.

### Step 4: Write the reaction
The reaction can be summarized as follows:
\[ \text{Propanone} + 2 \text{Phenol} \xrightarrow{\text{Acid}} \text{Bisphenol-A} \]

### Conclusion
The compound that reacts with propanone to obtain bisphenol-A is **phenol (C6H5OH)**.

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