Chapter 8.2, Problem 27PP

Interpretation Introduction

Interpretation:

The formula of chlorine trifluoride needs to be determined.

Concept introduction:

Using valency or charge on an atoms present in the compound, the formula of a compound can be determined.

Answer to Problem 27PP

Chlorine Trifluoride: $Cl{F}_3$

Explanation of Solution

In Chlorine Trifluoride, Fluoride represents $F^{-}$ anion and chlorine is the cation.

As fluorine is more electronegative compared to chlorine, $F^{-}$ anion is stable in the compound

Chlorine: $C{l}^{n+}$

Trifluoride: $3F^{-}$

$C{l}^{n+}\bcancel{\cancel{}}{F}^{-1}\to Cl{F}_3$

VSEPR Theory:

As per $Cl{F}_3,Cl$ needs three unpaired electrons and 2 bond pairs.

Hence having a T − shape and $s{p}^3$ hybridization

$\to$ T − Shaped is due to lone pairs occupying two equatorial positions

$\to$ $Cl{F}_3$ has polar covalent bonds due to less electro negativity difference

$Cl{F}_3$ is an interhalogen compound and it is extremely reactive, strong oxidizing and fluorinating agent.

Conclusion

The formula will be:

$Cl{F}_3:$ Chlorine trifluoride