Which of the following is correct statement (s):

Options

A. Vinylic halides have halogen atom linked to carbon having double bond .
B. Geminal dihalides have halogen atoms attached to same carbon atom .
C. In allylic halides halogen atom is linked to `sp^3` hybridised carbom .
D. all of the above

Explanation

To determine which statements regarding vinylic halides, geminal dihalides, and allylic halides are correct, we will analyze each statement step by step.

### Step 1: Understanding Vinylic Halides
- **Definition**: Vinylic halides are compounds where a halogen atom is bonded to a carbon atom that is part of a double bond.
- **Example**: Consider the structure CH2=CHX (where X is a halogen such as Cl or Br).
- **Conclusion**: The statement "vinylic halides have halogen atom linked to carbon having double bond" is **correct**.

### Step 2: Understanding Geminal Dihalides
- **Definition**: Geminal dihalides are compounds where two halogen atoms are attached to the same carbon atom.
- **Example**: For instance, in a compound like CHX2 (where X is a halogen), both halogens are attached to the same carbon.
- **Conclusion**: The statement "geminal dihalides have halogen atom attached to the same carbon atom" is **correct**.

### Step 3: Understanding Allylic Halides
- **Definition**: Allylic halides are compounds where a halogen atom is bonded to a carbon atom that is adjacent to a carbon-carbon double bond (the sp3 hybridized carbon is adjacent to an sp2 hybridized carbon).
- **Example**: Consider the structure CH2=CH-CH2X. Here, the halogen is attached to the CH2 group, which is sp3 hybridized and adjacent to the sp2 hybridized carbon in the double bond.
- **Conclusion**: The statement "in allylic halides halogen atom is linked to sp3 hybridized carbon" is **correct**.

### Final Conclusion
- Since all three statements regarding vinylic halides, geminal dihalides, and allylic halides are correct, the answer to the question "Which of the following is correct statement(s)?" is:
- **Option D: All of the above statements are correct.**