(A) Acetonitrile is an industrial solvent. Propose a hybridization and bonding scheme consistent with its structure.

(B) A reference source on molecular structures lists the following data for dinitrogen monoxide (nitrous oxide), N₂O: Bond lengths: N—N = 113 pm; N—O = 119 pm; bond angle = 180°. Show that the Lewis structure of N₂O is a resonance hybrid of two contributing structures, and describe a plausible hybridization and bonding scheme for each.

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HTCIH H-C-C=N: