explain how does the velence bond theory account for : (1) a carbon-carbon double bond (2) a carbon-carbon triple bond
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Explanation:
As per VB theory the bonds are formed by the overlapping of orbitals and if head to head to overlap occur it produces sigma bonds and if sideways overlap between p orbital occur it produces pi bonds which leads to double or triple bond depending on the number of sideways overlap.
The simplest triple-bonded organic compound is acetylene, C2H2. Triple bonds are stronger than double bonds due to the the presence of two [latex]\pi[/latex] bonds rather than one.
A typical carbon–carbon single bond has a length of 154 pm, while a typical double bond and triple bond are 134 pm and 120 pm, respectively.
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