Question

Which of the following silicate is called disilicate?

• A. Orthosilicate
• B. Pyrosilicate
• C. Single-chain silicate
• D. None of these

Answer 1

The correct option is B Pyrosilicate

Pyrosilicate is called disilicate.Orthosilicate has $Si{O}_4^{4-}$unit.

Pyrosilicate has $Si{O}_7^{2-}$. Single chain silicates are called pyroxene.

They contain a linear single strand chain of composition $(Si{O}_3{)}_n^{2-}$ in which two oxygen atoms per tetrahedron are shared.

Examples include Spodumene $LiAl(Si{O}_3{)}_2$ and Enstatite $MgSi{O}_3$.