For which of the following hybridisation the bond angle is maximum ?

Options

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

Answer

To determine which hybridization has the maximum bond angle, we need to analyze the bond angles associated with different types of hybridization. Let's go through each type step by step.

### Step 1: Analyze SP2 Hybridization
- **Hybridization Type**: SP2
- **Atomic Orbitals Involved**: Mixing of 1s and 2p orbitals.
- **Geometry**: Trigonal planar.
- **Bond Angle**: 120 degrees.
- **Example**: Boron trifluoride (BF3) has a bond angle of 120 degrees.

### Step 2: Analyze SP Hybridization
- **Hybridization Type**: SP
- **Atomic Orbitals Involved**: Mixing of 1s and 1p orbitals.
- **Geometry**: Linear.
- **Bond Angle**: 180 degrees.
- **Example**: Carbon dioxide (CO2) has a bond angle of 180 degrees.

### Step 3: Analyze SP3 Hybridization
- **Hybridization Type**: SP3
- **Atomic Orbitals Involved**: Mixing of 1s and 3p orbitals.
- **Geometry**: Tetrahedral.
- **Bond Angle**: 109.5 degrees.
- **Example**: Methane (CH4) has a bond angle of 109.5 degrees.

### Step 4: Analyze DSP2 Hybridization
- **Hybridization Type**: DSP2
- **Atomic Orbitals Involved**: Mixing of 1d, 1s, and 2p orbitals.
- **Geometry**: Square planar.
- **Bond Angle**: 90 degrees.
- **Example**: Nickel cyanide (Ni(CN)4) has a bond angle of 90 degrees.

### Conclusion
After analyzing the bond angles for each type of hybridization:
- SP2 has a bond angle of 120 degrees.
- SP has a bond angle of 180 degrees.
- SP3 has a bond angle of 109.5 degrees.
- DSP2 has a bond angle of 90 degrees.

The maximum bond angle is found in **SP hybridization**, which has a bond angle of **180 degrees**.

### Final Answer
The hybridization with the maximum bond angle is **SP**.

---