Formaldehyde has the formula H2CO. Describe the bonding between the C and O atom

Question

Formaldehyde has the formula H2CO. Describe the bonding between the C and O atoms in VB terms. Hybridization of C atom?

Which statement is correct?

A) The hybridized orbital on C overlaps with a 2p orbital on O to form a bond. The unhybridized 2p orbital on C overlaps with a parallel 2p orbital on O to form the bond.

B) The unhybridized orbital on C overlaps with a 2p orbital on O to form a bond. The hybridized 2p orbital on C overlaps with a parallel 2p orbital on O to form the bond.

C) Two hybridized orbitals on C overlaps with two 2p orbitals on O to form the and the bond.

Explanation / Answer

A) The hybridized orbital on C overlaps with a 2p orbital on O to form a bond. The unhybridized 2p orbital on C overlaps with a parallel 2p orbital on O to form the bond.

because in H2CO carbon undrgoes SP^2 HYBRIDISATION.Hence the central atom carbon has 3 SP^2 hybrid orbitals and one unhybrid p-orbital.all the time the phi-bond is formed by the combination od unhybridised orbital overlappinig is side wise manner..the sigma bond is formed by the end-end overlap of hybridised orbitals.

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