Reaction of chlorobenzene with chloral in presence conc. `H_(2) SO_(4)` gives _____

Options

A. Gammazene
B. Hexachloroethane
C. Freon
D. DDT

Explanation

To solve the question regarding the reaction of chlorobenzene with chloral in the presence of concentrated sulfuric acid (H₂SO₄), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The reactants in this reaction are chlorobenzene (C₆H₅Cl) and chloral (CCl₃CHO).

2. **Understand the Role of Concentrated H₂SO₄**:
- Concentrated sulfuric acid acts as a dehydrating agent in this reaction, facilitating the removal of water.

3. **Write the Reaction**:
- The reaction can be represented as:
\[ \text{C}_6\text{H}_5\text{Cl} + \text{CCl}_3\text{CHO} \xrightarrow{\text{H}_2\text{SO}_4} \text{Product} + \text{H}_2\text{O} \]

4. **Dehydration Reaction**:
- In the presence of concentrated H₂SO₄, a dehydration reaction occurs, where a water molecule is removed from the reactants.

5. **Identify the Product**:
- The product formed from this reaction is DDT (Dichloro-Diphenyl-Trichloroethane), which can be represented as:
\[ \text{C}_6\text{H}_4\text{(Cl)}_2\text{CCl}_3 \]

6. **Final Answer**:
- Therefore, the final product of the reaction of chlorobenzene with chloral in the presence of concentrated sulfuric acid is DDT.

### Conclusion:
The answer to the question is **DDT (Dichloro-Diphenyl-Trichloroethane)**.