Whats the molecular geometry of HCN?


Hcn Molecular Geometry

Hcn Shape

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Whats the molecular geometry of HCN?
I think its bent but not sure
octahedral (Definitely not)
trigonal planar

they are right! >>Linear<<

Lewis diagram: . . H–C≡N:
It is linear with an sp-hybridized carbon

You use a triple bond in order to satisfy the octets on both the carbon and the nitrogen atom. You've got 10 electrons on the whole molecule and only one pair used for the C–H bond. The other four pairs are used in the triple bond and the nitrogen-localized lone pair.

It is linear. You should count the C-N triple bond as one electron pair on the central C, so there are just 2 pairs and no lone pairs -> linear.


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