Which of the following pairs of molecules hav | vedclass

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(C) The bond dissociation energy of $F_2$ is approximately $158 \ kJ/mol$ due to significant inter-electronic repulsion between the lone pairs of the

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$F_2$ and $I_2$

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(C) The bond dissociation energy of $F_2$ is approximately $158 \ kJ/mol$ due to significant inter-electronic repulsion between the lone pairs of the small $F$ atoms.The bond dissociation energy of $I_2$ is approximately $151 \ kJ/mol$. The bond is weak because the $5p$ orbitals of $I$ atoms are very large,leading to poor orbital overlap.Since $158 \ kJ/mol$ and $151 \ kJ/mol$ are very close,$F_2$ and $I_2$ have almost identical bond dissociation energies.Therefore,the correct pair is $F_2$ and $I_2$.

Which of the following pairs of molecules have almost identical bond dissociation energy?

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