Chemistry - CHEMICAL BONDING Question with Solution | TestHub

The question asks to identify the correct statement regarding bond lengths.

Option C is correct: $d_{\mathrm{P}-\mathrm{Cl}}$ in $\mathrm{PC}{\mathrm{l}}_2{\mathrm{F}}_3<d_{\mathrm{P}-\mathrm{Cl}}$ in $\mathrm{PC}{\mathrm{l}}_3{\mathrm{F}}_2$.

This is due to the higher electronegativity of fluorine, which reduces electron density around phosphorus in $\mathrm{PC}{\mathrm{l}}_2{\mathrm{F}}_3$, leading to shorter P-Cl bonds compared to $\mathrm{PC}{\mathrm{l}}_3{\mathrm{F}}_2$.