Chemistry - Complete Pblock- Question with Solution | TestHub

In pyroxenes, there is a total of 3 oxygen atoms per silicon atom, so the simplest repeating unit is${\left[{\text{SiO}}_{\text{3}}\right]}^{\text{2}-}$or${\left[{\text{SiO}}_{\text{3}}\right]}_{\text{n}}^{\text{2n}-}$