In the compound , what is the hybridization of the indicated nitrogen atom?
A
B
C
D
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1
Identify the structure of the compound CH₃CN, which is acetonitrile. It consists of a methyl group (CH₃-) attached to a cyano group (-CN).
Focus on the nitrogen atom in the cyano group. The nitrogen is triple-bonded to the carbon atom in the -CN group.
Recall that the hybridization of an atom depends on the number of regions of electron density (bonds and lone pairs) around it. For nitrogen in -CN, it forms one sigma bond and two pi bonds with carbon, and it has one lone pair.
Since the nitrogen forms a triple bond (one sigma and two pi bonds) and has one lone pair, it has two regions of electron density (one sigma bond and one lone pair), which corresponds to an sp hybridization.
Therefore, conclude that the nitrogen atom in CH₃CN is sp hybridized because it forms a linear arrangement with two electron density regions.