HydrocarbonsMedium

Bond angle (sp hybridization)

In acetylene HC≡CH, what is the H—C—C bond angle? (sp carbon)

Given data

Hybridization: sp

Steps

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The bond angle depends on how the hybrid orbitals arrange themselves, repelling each other to minimize electron repulsion (VSEPR). The two sp orbitals point in opposite directions → linear geometry → 180° angle.
Write your working — the numerical result must appear in the text °

Full worked solution

The bond angle depends on how the hybrid orbitals arrange themselves, repelling each other to minimize electron repulsion (VSEPR). The two sp orbitals point in opposite directions → linear geometry → 180° angle.
sp hybridization gives a linear geometry → angle of $\mathbf{180^\circ}$ .

Result:

180^\circ

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