The main difference in C-X bond of a haloalkane and a haloarene is

Options

A. C-X bond in haloalkanes is shorter than halorenes.
B. in haloalkanes the C attached to halogen in C-X bond is `sp^3` hybridised while in haloarenes it is `sp^2` hybridised.
C. C-X bond in halarenes acquires a double bond character due to higher electronegativity of X than haloalkanes.
D. haloalkanes are less reactive than haloarenes due to difficulty in C-X cleavage in haloalkanes.

Explanation

To determine the main difference in the C-X bond of a haloalkane and a haloarene, we need to analyze the characteristics of the carbon atoms in both compounds and the nature of the bonds formed with halogens.

### Step-by-Step Solution:

1. **Understanding Haloalkanes and Haloarenes**:
- **Haloalkanes**: These are organic compounds where a halogen atom (X) is bonded to a saturated carbon atom (sp³ hybridized). The general structure can be represented as R-X, where R is an alkyl group.
- **Haloarenes**: These are compounds where a halogen atom is bonded to a carbon atom in an aromatic ring (sp² hybridized). The structure can be represented as Ar-X, where Ar is an aryl group.

2. **Hybridization of Carbon**:
- In haloalkanes, the carbon atom attached to the halogen is sp³ hybridized. This means that the carbon forms four single bonds (one with the halogen and three with other carbon or hydrogen atoms).
- In haloarenes, the carbon atom bonded to the halogen is sp² hybridized, indicating that it is part of a double bond system (with one double bond to another carbon in the aromatic ring).

3. **Bond Character**:
- The C-X bond in haloalkanes is primarily a single bond with no significant resonance.
- In haloarenes, the C-X bond can exhibit some double bond character due to resonance. The lone pairs on the halogen can delocalize into the aromatic system, contributing to the stability and bond characteristics.

4. **Bond Length and Reactivity**:
- The C-X bond in haloarenes is generally shorter than that in haloalkanes due to the partial double bond character arising from resonance.
- Haloarenes are typically less reactive than haloalkanes because the resonance stabilization makes the C-X bond stronger and less prone to cleavage.

5. **Conclusion**:
- The main difference in the C-X bond of haloalkanes and haloarenes is that in haloalkanes, the carbon is sp³ hybridized, while in haloarenes, the carbon is sp² hybridized. This difference in hybridization affects the bond length, bond character, and reactivity of the compounds.

### Final Answer:
The correct statement regarding the main difference in the C-X bond of haloalkanes and haloarenes is that in haloalkanes, the C attached to the halogen in the C-X bond is sp³ hybridized, while in haloarenes, it is sp² hybridized.