The hybrid orbitals used by the underlined atoms in CH₂CHCHO, from left to right,Respectively,Are

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The molecule CH2=CHCHO involves two underlined atoms: the first carbon in the vinyl group (CH2=) and the carbon in the aldehyde group (CHO). The first carbon is sp2 hybridized due to its involvement in a double bond, which requires three hybrid orbitals (one for the sigma bond in the double bond, one for the single bond to hydrogen, and one for the single bond to the next carbon). The carbon in the aldehyde group is also sp2 hybridized because it forms a double bond with oxygen and two single bonds (one with hydrogen and one with the adjacent carbon).

The Hybrid Orbitals Used by the Underlined Atoms in CH2CHCHO

The Hybrid Orbitals Used by the Underlined Atoms in CH₂CHCHO