DDT is formed from

Options

A. Benzene and Chlorobenzene
B. Chloral and chlorobenzene
C. Chloral and benzene
D. Chlorobenzene and chlorine

Answer

To determine what DDT (Dichlorodiphenyltrichloroethane) is formed from, we can break down the information provided in the video transcript into a step-by-step solution.

### Step-by-Step Solution:

1. **Identify DDT**:
- DDT stands for Dichlorodiphenyltrichloroethane. It is a chemical compound known for its use as an insecticide.

2. **Components of DDT**:
- DDT is synthesized from chloral (CCl3CHO) and chlorobenzene (C6H5Cl).

3. **Reaction Conditions**:
- The synthesis of DDT involves heating a mixture of chloral and chlorobenzene in a specific ratio, which is 1 part chloral to 2 parts chlorobenzene, in the presence of concentrated sulfuric acid (H2SO4).

4. **Chemical Reaction**:
- The reaction can be summarized as:
\[ \text{Chloral} + 2 \times \text{Chlorobenzene} \xrightarrow{\text{H}_2\text{SO}_4} \text{DDT} \]
- This reaction leads to the formation of DDT, which has the structure of dichlorodiphenyltrichloroethane.

5. **Evaluate Options**:
- Given the options:
1. Benzene and chlorobenzene
2. Chloral and chlorobenzene
3. Chloral and benzene
4. Chlorobenzene and chlorine
- The correct option is **Chloral and chlorobenzene** (Option 2), as this is the combination that leads to the formation of DDT.

### Conclusion:
DDT is formed from the reaction of chloral and chlorobenzene in the presence of concentrated sulfuric acid.

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