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Q.
The bond having the highest bond energy is
NTA AbhyasNTA Abhyas 2020Chemical Bonding and Molecular Structure
Solution:
The bond having the highest bond energy is $C=O$ due to more effective axial and sideways overlapping between atomic orbitals of carbon and those of oxygen atom. It is higher due to smaller size of oxygen atom. Oxygen is more electronegative than carbon atom, due to these factors CO has highest bond energy.