Which of the following pairs of molecules hav | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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

Vedclass · Accepted Answer

$F_2$ and $I_2$

Vedclass · Answer

(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?

Similar Questions

$CO$ has the same number of electrons as which of the following ions? Or,which ion is isoelectronic with $CO$?

In the $Al_2Cl_6$ dimer,which of the following statements is true regarding the $Al-Cl$ bonds?

The Born-Haber cycle is used to determine:

Which of the following pairs does not contain isoelectronic species?

Each of the following compounds contains $p\pi -d\pi$ bonds except:

Vedclass Test Series

Exam Paper Generator

Online Exam Module