Describe the bonding between carbons in C2H4 using valence bond theory. Which of the following is...

Describe the bonding between carbons in C2H4 using valence bond theory. Which of the following is true?

There is a pi bond formed by overlapping sp3 hybridized orbitals

There is a pi bond formed by overlapping unhybridized orbitals

There is a sigma bond formed by overlapping sp3 hybridized orbitals

There is a sigma bond formed by overlapping unhybridized orbitals

Solutions

Expert Solution

Valence Bond theory describes the geometries of moleculaes in terms of the bonding orbitals used by the atoms in these molecules.

The hybridization in C2H4 is sp2 so there are 3 sp2 hybridized orbital per carbon

So there is 1 -bond formed between the two carbons and each carbon forms 2 -bond with hydrogen.

The two half-filled p orbitals on each carbon overlap to form the pi-bond.

SO the correct answer here will be

There is a pi bond formed by overlapping unhybridized orbitals

queen_honey_blossom answered 1 year ago

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