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Chapter 2 : Alkanes |  |
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Chapter 2 : Alkanes | |
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No, a p bond is not symmetric with respect to the internuclear axis. Rotation about the axis along the bond produces no change in the view of a s bond (top pair) but rotation about the axis along the bond switches the lobes of the orbitals in the p bond (bottom). |  |
Ans 2 : Allene H2C=C=CH2 first look at how many groups each C is attached to, the answer is colour coded below:
Therefore, there are 2 sp2 and 1 sp hybridised C atoms. Note that this example highlights an example of an sp hybridised C that is not part of an alkyne CºCAns 3 : Again we need to look at the groups attached to the C atoms in question:
Therefore the bond that attaches the methyl group to the double bond is a s bond formed by the intereraction of a C sp3 and a Csp2 orbitals.