Question

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

• A. $(S{i}_2{O}_5^{2-}{)}_n$
• B. $(Si{O}_3^{2-}{)}_n$
• C. $(Si{O}_4{)}^{4-}$
• D. $S{i}_2{O}_7^{6-}$

Answer 1

The correct option is B $(Si{O}_3^{2-}{)}_n$

Chain silicates: Chain silicates are formed by sharing two oxygen atoms by each tetrahedral. Anions of chain silicate have two general formula:

$(Si{O}_3^{2-}{)}_n^{2n-}$ and $(S{i}_4{o}_{1}1{)}_n^{6n-}$