The type of overlapping in Br-F bond in `BrF_3` molecule is

Options

A. `sp^3 - p`
B. `sp^2 - p`
C. `sp^3d-p`
D. `sp^3 - d^2 -p`

Explanation

To determine the type of overlapping in the Br-F bond in the `BrF_3` molecule, we can follow these steps:

### Step-by-Step Solution:

1. **Draw the Lewis Structure of BrF3**:
- Bromine (Br) is the central atom, and it is bonded to three fluorine (F) atoms.
- Each fluorine atom forms a single bond with bromine.
- Bromine has 7 valence electrons, and after forming 3 bonds with fluorine, it has 4 electrons left, which will form 2 lone pairs.

2. **Determine the Hybridization of Bromine**:
- Bromine has 2 lone pairs and 3 bond pairs (one for each Br-F bond).
- The total number of electron pairs around bromine is 5 (2 lone pairs + 3 bond pairs).
- The hybridization corresponding to 5 electron pairs is sp³d.

3. **Identify the Orbital of Fluorine Participating in Bonding**:
- Fluorine has an atomic number of 9, with the electron configuration of 1s² 2s² 2p⁵.
- In the bonding with bromine, the unpaired electron in the 2p orbital of fluorine will participate in the bond formation.

4. **Determine the Type of Overlapping**:
- The overlapping occurs between the sp³d hybrid orbital of bromine and the p orbital of fluorine.
- Therefore, the type of overlapping in the Br-F bond is sp³d-p overlapping.

5. **Conclusion**:
- The type of overlapping in the Br-F bond in the `BrF_3` molecule is sp³d-p overlapping.

### Final Answer:
The type of overlapping in the Br-F bond in `BrF_3` is **sp³d-p overlapping**.

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