Which of the following facts regarding $\mathrm{ClF}_{3}$ is correct?

Which of the following facts regarding $\mathrm{ClF}_{3}$ is correct?
  1. All the three $\mathrm{Cl}-\mathrm{F}$ bond has the same length
  2. The angles $\mathrm{F}-\mathrm{Cl}-\mathrm{F}$ are $120^{\circ}$
  3. There is no lone pair of electrons around $\mathrm{Cl}$
  4. There are two lone pair of electrons occupying equatorial positions

Solution

The structure of $\mathrm{ClF}_{3}$ is


The F-Cl-F bond angles is $87^{\circ}$. It is less than $90^{\circ}$ because of lone-pair-bond pair electron repulsions. The two bond lengths are $169.8 \mathrm{pm}$ (axial bond) and $159.8 \mathrm{pm}$ (equatorial bond)

Asked in: JEE-TOPICTESTS-CHEMISTRY

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