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Which hononuc...

Question

Which hononuclear diatomic molecule has the highest bond dissociation enthalpy?

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Solution

nitrogen molecule has three bonds, one σ and two π-bonds. This is in accordance with very high bond dissociation energy (945 kJ mol^-1) and small bond length (110 pm) of the molecule. The molecule has no unpaired electrons and therefore it is diamagnetic.

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