Question

A cyclic skeleton of silicon and oxygen can constructed by the silicate ion composition :

• A. $S{i}_2{O}_7^{4-}$
• B. $S{i}_2{O}_5^{2-}$
• C. $Si{O}_3^{2-}$
• D. $Si{O}_4^{4-}$

Answer 1

The correct option is C $Si{O}_3^{2-}$

Cyclic silicates contain (SiO₃)_n^2n-ions which are formed by linking three or more tetrahedral SiO₄^4- units cyclically. Each unit shares two oxygen atoms with other units.

hence C is correct answer