Ethylidene chloride is a/an…..

Options

A. vic-dihalide
B. gem-dihalide
C. allylic halide
D. vinylic halide

Explanation

To determine the classification of ethylidene chloride, we need to analyze its structure and compare it with the definitions of the types of halides provided in the options.

### Step-by-Step Solution:

1. **Understanding Ethylidene Chloride**:
- Ethylidene chloride has the molecular formula C2H4Cl2. Its structure can be represented as CH2=CCl-CH2Cl, where there are two chlorine atoms attached to the carbon atoms.

2. **Identifying the Types of Dihalides**:
- **Vicinal Dihalide**: This type has two halogen atoms attached to neighboring carbon atoms. For example, if we have a structure where two halogens are on adjacent carbons, it is termed vicinal.
- **Geminal Dihalide**: In this case, both halogen atoms are attached to the same carbon atom. An example would be CCl2-CH2.
- **Allylic Halide**: This is when a halogen is attached to a carbon atom that is adjacent to a carbon-carbon double bond (sp2 hybridized).
- **Vinylic Halide**: This involves a halogen attached directly to a carbon atom that is part of a double bond (also sp2 hybridized).

3. **Analyzing Ethylidene Chloride**:
- In the case of ethylidene chloride, the chlorine atoms are attached to two different carbon atoms that are adjacent to each other. This fits the definition of a vicinal dihalide.

4. **Conclusion**:
- Based on the analysis, ethylidene chloride is classified as a vicinal dihalide.

### Final Answer:
Ethylidene chloride is a vicinal dihalide.

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