Out of (i) `XeO_(3)(ii) XeOF_(4) and (iii) XeF_(6)` the molecules having same number of lone pairs on `Xe` are

Options

A. (i) and (ii) only
B. (i) and (iii) only
C. (ii) and (iii) only
D. (i),(ii) and (ii) only

Explanation

To determine which of the given xenon compounds (XeO₃, XeOF₄, and XeF₆) have the same number of lone pairs on xenon (Xe), we will analyze each compound step by step.

### Step 1: Calculate the Steric Number for XeO₃
1. **Valence Electrons**: Xenon (Xe) has 8 valence electrons.
2. **Monovalent Species**: XeO₃ has no monovalent species, so this is 0.
3. **Steric Number Calculation**:
\[ \text{Steric Number} = \frac{\text{Valence Electrons} + \text{Monovalent Species}}{2} = \frac{8 + 0}{2} = 4 \]
4. **Hybridization**: The steric number of 4 corresponds to sp³ hybridization.
5. **Structure**: The structure of XeO₃ has one double bond with each oxygen and one lone pair on xenon.

### Step 2: Calculate the Steric Number for XeOF₄
1. **Valence Electrons**: Xenon has 8 valence electrons.
2. **Monovalent Species**: XeOF₄ has 4 fluorine atoms, which are monovalent, so this is 4.
3. **Steric Number Calculation**:
\[ \text{Steric Number} = \frac{8 + 4}{2} = 6 \]
4. **Hybridization**: The steric number of 6 corresponds to sp³d² hybridization.
5. **Structure**: The structure of XeOF₄ has a double bond with oxygen and four fluorine atoms, resulting in one lone pair on xenon.

### Step 3: Calculate the Steric Number for XeF₆
1. **Valence Electrons**: Xenon has 8 valence electrons.
2. **Monovalent Species**: XeF₆ has 6 fluorine atoms, so this is 6.
3. **Steric Number Calculation**:
\[ \text{Steric Number} = \frac{8 + 6}{2} = 7 \]
4. **Hybridization**: The steric number of 7 corresponds to sp³d³ hybridization.
5. **Structure**: The structure of XeF₆ has six fluorine atoms bonded to xenon and one lone pair.

### Conclusion
- **XeO₃**: 1 lone pair
- **XeOF₄**: 1 lone pair
- **XeF₆**: 1 lone pair

All three compounds (XeO₃, XeOF₄, and XeF₆) have the same number of lone pairs on xenon, which is 1.

### Final Answer
The molecules having the same number of lone pairs on Xe are **(i) XeO₃, (ii) XeOF₄, and (iii) XeF₆**.

---