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Valence bond theory predicts that the following molecule should result when a ca

ID: 857728 • Letter: V

Question

Valence bond theory predicts that the following molecule should result when a carbon atom joins two hydrogen atoms.
Which statement about this predicted molecule is NOT true?
A ? bond is formed when an electron from the 1s orbital of a hydrogen atom bonds with an electron from the 2px orbital of carbon. Another ? bond is formed when an electron from the 1s orbital of a hydrogen atom bonds with an electron from the 2py orbital of carbon. The px and py orbitals are perpendicular to each other and perpendicular to the pz orbital (which is not shown). We use valence bond theory to explain that the bonding occurs when an orbital that contains a pair of electrons overlaps with another orbital that has one pair of electrons.

Explanation / Answer

We use valence bond theory to explain that the bonding occurs when an orbital that contains a pair of electrons overlaps with another orbital that has one pair of electrons.