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Why does sp2 Carbon- sp3 Carbon bond have a higher bond energy than an sp3 Carbon- sp3 Carbon bond?
A) An sp2 orbital is shorter than an sp3 orbital, hence the sp2C-sp3C bond is shorter and thus stronger
B) An sp2 orbital is shorter than an sp3 orbital, hence the sp2C-sp3C bond is longer and thus weaker
C) An sp2 orbital is less electronegative than an sp3 orbital, hence the sp2C-sp3C bond is more polar and thus stronger
D) An sp2 orbital is more electronegative than an sp3 orbital, hence the sp2C-sp3C bond is more polar and thus stronger.
Answer: A <--- Highlight to see
My question is: As a rule, do we assume that the greater is the s character, the smaller is the orbital?
Is it because s orbitals have smaller radii than p orbitals?
Why do we automatically assume that shorter orbitals have greater electronegativities?
I honestly don't see how electronegativity and hybridization affect each other...
Thanks!
A) An sp2 orbital is shorter than an sp3 orbital, hence the sp2C-sp3C bond is shorter and thus stronger
B) An sp2 orbital is shorter than an sp3 orbital, hence the sp2C-sp3C bond is longer and thus weaker
C) An sp2 orbital is less electronegative than an sp3 orbital, hence the sp2C-sp3C bond is more polar and thus stronger
D) An sp2 orbital is more electronegative than an sp3 orbital, hence the sp2C-sp3C bond is more polar and thus stronger.
Answer: A <--- Highlight to see
My question is: As a rule, do we assume that the greater is the s character, the smaller is the orbital?
Is it because s orbitals have smaller radii than p orbitals?
Why do we automatically assume that shorter orbitals have greater electronegativities?
I honestly don't see how electronegativity and hybridization affect each other...
Thanks!