p-Hydroxybenzophenone upon reaction with bromine in carbon tetrachloride gives:

Options

A.
B.
C.
D.

Explanation

To solve the problem of what p-hydroxybenzophenone gives upon reaction with bromine in carbon tetrachloride, we will follow these steps:

### Step 1: Understand the Structure of p-Hydroxybenzophenone
- p-Hydroxybenzophenone consists of a benzophenone structure with a hydroxyl (-OH) group attached to the para position of one of the phenyl rings.
- The structure can be represented as follows:

```
O
||
C6H5-C-C6H4-OH
```

### Step 2: Identify the Reaction Conditions
- The reaction is performed with bromine (Br2) in carbon tetrachloride (CCl4).
- CCl4 is a non-polar organic solvent, which helps in the dissolution of bromine.

### Step 3: Determine the Electrophilic Nature of Bromine
- Bromine (Br2) acts as an electrophile in this reaction. Electrophiles are species that seek electrons and can react with nucleophiles (electron-rich species).

### Step 4: Identify the Active Sites for Bromination
- In p-hydroxybenzophenone, the hydroxyl group (-OH) is an electron-donating group due to the presence of lone pairs on the oxygen atom. This makes the aromatic ring more reactive towards electrophilic substitution.
- The carbonyl group (C=O) is electron-withdrawing, but the -OH group has a stronger electron-donating effect.

### Step 5: Electrophilic Attack
- The bromine will preferentially attack the carbon atom of the aromatic ring that is ortho or para to the hydroxyl group due to the increased electron density in these positions.
- The reaction will lead to the formation of a brominated product where bromine replaces a hydrogen atom on the aromatic ring.

### Step 6: Draw the Product Structure
- The product of the reaction will be 4-bromo-p-hydroxybenzophenone. The bromine atom will attach to the carbon atom adjacent to the hydroxyl group, resulting in the following structure:

```
O
||
C6H5-C-C6H4-Br
```

### Step 7: Conclusion
- The final product of the reaction between p-hydroxybenzophenone and bromine in carbon tetrachloride is 4-bromo-p-hydroxybenzophenone.