Two types of FXF angles are present in which of the following molecule (X = S, Xe, C)

Options

A. `SF_(4)`
B. `XeF_(4)`
C. `SF_(6)`
D. `CF_(4)`

Explanation

To determine which molecule has two types of FXF angles, we will analyze the given molecules: SF4, XeF4, SF6, and CF4. We will focus on their hybridization, molecular geometry, and the types of bond angles present.

### Step 1: Analyze SF4
- **Molecule**: SF4
- **Hybridization**: SP3D
- **Geometry**: Trigonal bipyramidal
- **Bond Angles**:
- Axial bond angle (FXF) = 173°
- Equatorial bond angle (XFF) = 102°

**Conclusion**: SF4 has two types of FXF angles: one for the axial bonds and one for the equatorial bonds.

### Step 2: Analyze XeF4
- **Molecule**: XeF4
- **Hybridization**: SP3D2
- **Geometry**: Square planar
- **Bond Angles**:
- All bond angles are 90° (only one type of bond angle).

**Conclusion**: XeF4 does not have two types of FXF angles.

### Step 3: Analyze SF6
- **Molecule**: SF6
- **Hybridization**: SP3D2
- **Geometry**: Octahedral
- **Bond Angles**:
- All bond angles are 90° (only one type of bond angle).

**Conclusion**: SF6 does not have two types of FXF angles.

### Step 4: Analyze CF4
- **Molecule**: CF4
- **Hybridization**: SP3
- **Geometry**: Tetrahedral
- **Bond Angles**:
- All bond angles are 109.5° (only one type of bond angle).

**Conclusion**: CF4 does not have two types of FXF angles.

### Final Conclusion
From the analysis, only **SF4** has two types of FXF angles: one for the axial bonds (173°) and one for the equatorial bonds (102°). Therefore, the answer is **SF4**.

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