Chemistry - PERIODIC TABLE Question with Solution | TestHub

Due to high electronegativity and small size, Cl-atom show highest $\mathrm{p}\pi -\mathrm{d}\pi$ interaction whereas Si show least $\mathrm{p}\pi -\mathrm{d}\pi$ interaction due to lower electronegativity and larger size. Hence the order of $\mathrm{p}\pi -\mathrm{d}\pi$ interactions are in the order $\mathrm{Si}<\mathrm{P}<\mathrm{S}<\mathrm{Cl}$