The incorrect statement about LDP is:

Options

A. It is obtained through the free radical addition of ethene.
B. It consists of linear molecules.
C. It is obtained by the H-atom abstraction.
D. Peroxide is used as an initiator.

Answer

To solve the question regarding the incorrect statement about Low-Density Polyethylene (LDP), we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding LDP**:
- Low-Density Polyethylene (LDP) is a type of polymer made from the polymerization of ethylene (ethene) monomers. It is characterized by its low density and branched molecular structure.

2. **Analyzing Option 1**:
- **Statement**: "It is obtained through the free radical addition of ethane."
- **Evaluation**: This statement is incorrect because LDP is obtained from the polymerization of ethylene, not ethane. Ethylene undergoes free radical polymerization to form LDP.

3. **Analyzing Option 2**:
- **Statement**: "It consists of linear molecules."
- **Evaluation**: This statement is incorrect. LDP consists of branched structures, which contribute to its low density. Therefore, this option is indeed incorrect.

4. **Analyzing Option 3**:
- **Statement**: "It is obtained by the H atom abstraction."
- **Evaluation**: This statement is correct. The polymerization process involves the abstraction of hydrogen atoms during the initiation of the polymer chain.

5. **Analyzing Option 4**:
- **Statement**: "Peroxide is used as an initiator."
- **Evaluation**: This statement is also correct. Peroxides are commonly used as initiators in the free radical polymerization process for LDP.

6. **Conclusion**:
- Based on the evaluations, the incorrect statement about LDP is **Option 2**: "It consists of linear molecules."

### Final Answer:
The incorrect statement about LDP is **Option 2**: "It consists of linear molecules."