The hybridization of nitrogen atom in pyridine is_______?
Correct answer: B. Sp2
- A. Sp
- B. Sp2
- C. Sp3
- D. It is not hybridized
Explanation
The nitrogen atom in pyridine is sp2 hybridized because it forms three sp2-based sigma bonds in a planar aromatic ring, while its unhybridized p orbital contributes one electron to the aromatic pi system. Students may choose sp3 by counting the lone pair as an electron pair, but the lone pair occupies an sp2 orbital and does not interrupt aromaticity.
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About Hybridization
Hybridization explains bonding by combining atomic orbitals to form equivalent hybrid orbitals with definite geometries. Coverage includes sp, sp², sp³, sp³d and sp³d² hybridization, their shapes and bond angles, and the relation of sigma and pi bonds to molecular structure.
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