The pair of compounds which have different hybridisation but same shape

Options

A. `SO_(3), ClF_(3)`
B. `BF_(3), PCl_(3)`
C. `XeF_(2), CO_(2)`
D. `XeF_(4), SF_(4)`

Answer

To solve the question about identifying a pair of compounds that have different hybridization but the same shape, we can follow these steps:

### Step 1: Identify the given options
We need to analyze the pairs of compounds provided in the options to determine their hybridization and shapes.

### Step 2: Analyze Option 1: SO3 and ClF3
- **SO3 (Sulfur Trioxide)**:
- Hybridization: SP2
- Shape: Trigonal planar
- **ClF3 (Chlorine Trifluoride)**:
- Hybridization: SP3D
- Shape: T-shaped

Since SO3 and ClF3 have different shapes, this option is not correct.

### Step 3: Analyze Option 2: BF3 and PCl3
- **BF3 (Boron Trifluoride)**:
- Hybridization: SP2
- Shape: Trigonal planar
- **PCl3 (Phosphorus Trichloride)**:
- Hybridization: SP3
- Shape: Trigonal pyramidal

Since BF3 and PCl3 have different shapes, this option is also not correct.

### Step 4: Analyze Option 3: XCF2 and CO2
- **XCF2 (Xenon Difluoride)**:
- Hybridization: SP3D
- Shape: Linear
- **CO2 (Carbon Dioxide)**:
- Hybridization: SP
- Shape: Linear

Both XCF2 and CO2 have the same shape (linear) but different hybridizations. This option satisfies the criteria.

### Step 5: Analyze Option 4: XCF4 and SF4
- **XCF4 (Xenon Tetrafluoride)**:
- Hybridization: SP3D2
- Shape: Square planar
- **SF4 (Sulfur Tetrafluoride)**:
- Hybridization: SP3D
- Shape: See-saw

Since XCF4 and SF4 have different shapes, this option is not correct.

### Conclusion
The correct answer is **Option 3: XCF2 and CO2**, as they have different hybridization (SP3D for XCF2 and SP for CO2) but the same shape (linear).

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