Which of the following hybridisation may have more than one type of bond angle ? .

Options

A. `sp^(2)`
B. `sp^(3)`
C. `sp^(3)d`
D. `sp^(3)d^(2)`

Explanation

To determine which hybridization may have more than one type of bond angle, we will analyze the different types of hybridization and their corresponding geometries.

### Step-by-Step Solution:

1. **Identify Hybridization Types**:
We will consider the following hybridization types:
- sp2
- sp3
- sp3d
- sp3d2

2. **Analyze sp2 Hybridization**:
- **Geometry**: The geometry of sp2 hybridization is trigonal planar.
- **Bond Angles**: In a trigonal planar arrangement, all bond angles are equal to 120 degrees.
- **Conclusion**: sp2 has only one bond angle.

3. **Analyze sp3 Hybridization**:
- **Geometry**: The geometry of sp3 hybridization is tetrahedral.
- **Bond Angles**: In a tetrahedral arrangement, all bond angles are equal to 109.5 degrees.
- **Conclusion**: sp3 has only one bond angle.

4. **Analyze sp3d Hybridization**:
- **Geometry**: The geometry of sp3d hybridization is trigonal bipyramidal.
- **Bond Angles**: This arrangement has three types of bond angles:
- 120 degrees (equatorial positions)
- 90 degrees (axial to equatorial positions)
- 180 degrees (between axial positions)
- **Conclusion**: sp3d has more than one bond angle.

5. **Analyze sp3d2 Hybridization**:
- **Geometry**: The geometry of sp3d2 hybridization is octahedral.
- **Bond Angles**: In an octahedral arrangement, there are two types of bond angles:
- 90 degrees (between adjacent bonds)
- 180 degrees (between opposite bonds)
- **Conclusion**: sp3d2 also has more than one bond angle.

6. **Final Conclusion**:
- The hybridizations that may have more than one type of bond angle are **sp3d** and **sp3d2**.

### Answer:
The correct answer is **C (sp3d) and D (sp3d2)**.