BF3 is planar and electron deficient compound. Hybridization and number of electrons around the central atom, respectively are :a)sp3 and 4b)sp3 and 6c)sp2and 6d)sp2 and 8Correct answer is option 'C'. Can you explain this answer?

Question

Answer

Sp²and 6 is the correct answer because  in BF3 boron will surrounded with 6 electron  and formed  the geometery of trigonal planner

Answer

The structure of BF₃ can be shown as follows,

Three hybrid orbital are required to form BF₃. Hence, the hybridisation of Boron is sp² and the number of electrons around the boron is 6 due to the presence of three B-F bonds

Answer

Explanation:

BF3 is a molecule that consists of one boron atom (B) and three fluorine atoms (F). The boron atom is the central atom in this compound. To determine the hybridization and number of electrons around the central atom, we need to consider the electron configuration and bonding in BF3.

Electron Configuration:
The electron configuration of boron is 1s2 2s2 2p1. In the ground state, the boron atom has three valence electrons in its outermost energy level.

Bonding in BF3:
In BF3, each fluorine atom shares one electron with the boron atom, resulting in a single covalent bond. Since there are three fluorine atoms, there are three single bonds in total.

Hybridization:
To form these bonds, the boron atom must hybridize its orbitals. The hybridization of the central atom is determined by the number of electron pairs and the number of atoms bonded to it. In the case of BF3, there are three electron pairs around the central boron atom (one from each fluorine atom).

The boron atom undergoes sp2 hybridization, where one 2s orbital and two 2p orbitals hybridize to form three sp2 hybrid orbitals. These orbitals are arranged in a trigonal planar geometry around the boron atom.

Number of Electrons around the Central Atom:
In the case of BF3, there are six electrons around the central boron atom. Each fluorine atom contributes one electron to the bonding, and the boron atom contributes one electron to each bond. Therefore, there are a total of six electrons around the central atom.

Conclusion:
The correct answer is option C: sp2 hybridization and six electrons around the central atom.

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