Which atomic orbitals overlap to form the carbon-carbon σ molecular bonding orbital of ethyne, HC≡CH? A) C2p + C2p B) C2sp + C2sp C) C2sp² + C2sp² D) C2sp³ + C2sp³

Question

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In ethyne (HC≡CH), the carbon-carbon sigma (σ) bond is formed by the overlap of two sp hybrid orbitals, one from each carbon atom. This hybridization occurs because each carbon atom is bonded to only two other atoms, necessitating the formation of two sp hybrid orbitals for the linear arrangement of the molecule.

Which Atomic Orbitals Overlap to Form the Carbon-Carbon σ Molecular