Vsepr & Hybridisation

Structure: $H - C \equiv C - H$ . Each Carbon is part of a triple bond.
Orbitals: Each Carbon forms $2$ $σ$ bonds (one with H, one with the other C) and $2$ $π$ bonds.
Steric Number: $2$ (based on $σ$ bonds).
Hybridisation: The Carbon atom undergoes $s p$ hybridisation.
Shape: These two $s p$ hybrid orbitals are oriented at $18 0^{\circ}$ to each other, resulting in a linear molecule.
$π$ formation: The two unhybridized $p$ -orbitals on each carbon overlap to form two $π$ bonds.

This easy difficulty chemistry question is from the chapter chemical bonding and molecular structure, covering the topic of vsepr & hybridisation. It appeared in the 2025 exam.

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Vsepr & Hybridisation

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