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AP EAMCET201824 Apr 2018Morning ShiftChemistryChemical Bonding and Molecular StructureActual

The bond dissociation energy (E) and bond length (R) of O ₂, ~N ₂ and F ₂ follow the order as:

Correct answer

2

Step-by-step solution

Greater the bond order, shorter is the bond length and thus, stronger is the bond. Since, for the given molecules, bond order follows the trend array ccc N ₂ & > O ₂ & > F ₂ ( ~B . O =3) & ( B . O =2) & ( B . O =1) array Thus, the bond length decreases as F ₂> O ₂> N ₂ and bond dissociation energy follows the trend N ₂> O ₂> F ₂

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