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In which one of the following molecules the central atom said to adopt sp2 hybridization?
- a)BeF2
- b)BF3
- c)C2H2
- d)NH3
Correct answer is option 'B'. Can you explain this answer?
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In which one of the following molecules the central atom said to adopt...
Explanation:
Hybridization is a concept of mixing atomic orbitals into new hybrid orbitals suitable for the pairing of electrons to form chemical bonds in valence bond theory.
- Hybridization of atomic orbitals occurs in the central atom of a molecule.
- Hybridization is denoted by sp, sp2, sp3, sp3d, sp3d2 based on the types of orbitals mixed.
- The number of hybrid orbitals formed is equal to the number of atomic orbitals mixed.
Out of the given molecules, the central atom in BF3 adopts sp2 hybridization. This can be explained as follows:
- BF3 molecule consists of one central boron atom bonded to three fluorine atoms.
- Boron has three valence electrons and three half-filled 2p orbitals.
- In order to form three sigma bonds with fluorine atoms, one 2s and two 2p orbitals of boron undergo hybridization to form three equivalent sp2 hybrid orbitals.
- The remaining p orbital of boron is unhybridized and contains a lone pair of electrons.
- Each sp2 hybrid orbital of boron forms a sigma bond with one fluorine atom, and the unhybridized p orbital participates in pi-bonding with the fluorine atoms.
Therefore, the central atom in BF3 adopts sp2 hybridization.
Hybridization is a concept of mixing atomic orbitals into new hybrid orbitals suitable for the pairing of electrons to form chemical bonds in valence bond theory.
- Hybridization of atomic orbitals occurs in the central atom of a molecule.
- Hybridization is denoted by sp, sp2, sp3, sp3d, sp3d2 based on the types of orbitals mixed.
- The number of hybrid orbitals formed is equal to the number of atomic orbitals mixed.
Out of the given molecules, the central atom in BF3 adopts sp2 hybridization. This can be explained as follows:
- BF3 molecule consists of one central boron atom bonded to three fluorine atoms.
- Boron has three valence electrons and three half-filled 2p orbitals.
- In order to form three sigma bonds with fluorine atoms, one 2s and two 2p orbitals of boron undergo hybridization to form three equivalent sp2 hybrid orbitals.
- The remaining p orbital of boron is unhybridized and contains a lone pair of electrons.
- Each sp2 hybrid orbital of boron forms a sigma bond with one fluorine atom, and the unhybridized p orbital participates in pi-bonding with the fluorine atoms.
Therefore, the central atom in BF3 adopts sp2 hybridization.
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In which one of the following molecules the central atom said to adopt sp2 hybridization?a)BeF2b)BF3c)C2H2d)NH3Correct answer is option 'B'. Can you explain this answer?
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