If `BF_(3)` react with `F^(-)`then how will hybridization of Boron change ?

Explanation

To determine how the hybridization of boron changes when BF₃ reacts with F⁻, we can follow these steps:

### Step 1: Analyze the Hybridization of BF₃
- **Boron (B)** has 3 valence electrons (configuration: 1s² 2s² 2p¹).
- In BF₃, boron forms three bonds with three fluorine atoms, using all its three valence electrons.
- The steric number (the number of bond pairs and lone pairs around the central atom) for BF₃ is 3 (3 bond pairs, 0 lone pairs).
- The hybridization can be determined using the steric number:
- Steric number 3 corresponds to **sp² hybridization**.
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