Which one of the following anions is present in the chain structure of silicates?

Question

Professor PC Thomas Classes · Answer

Chain silicates feature $(\mathrm{SiO}_3)^{2-}$ or $(\mathrm{Si}_2\mathrm{O}_5)^{2-}$ repeating units. Pyroxenes have $(\mathrm{SiO}_3)^{2-}$. [FLAG: verifying option D]