If three tetrahedral silicates units are joined together in cyclic and single chain form, which of the following statement is incorrect for above statement:

The formula of chain silicate is ${\mathrm{Si}}_3{\mathrm{O}}_{10}^{8-}$ and the formula of cyclic silicate is ${\mathrm{Si}}_9{\mathrm{O}}_9^{6-}$,

Total O shared by chain silicate is two and total O shared by cyclic silicate is 3 .

The formula of chain and cyclic silicate is $S{i}_3{O}_{\mathit{9}}^{\mathit{-}\mathit{6}}$

In cyclic silicate 6 O atoms are not shared and in chain silicate 8 O atoms are not shared.