Question

The structure of silicates in which three oxygen atoms of $[Si{O}_4{]}^{4-}$ are shared is :

• A. Pyrosilicate
• B. Sheet silicate
• C. Linear chain silicate
• D. Three-dimensional silicate

Answer 1

The correct option is B Sheet silicate

In sheet silicates, three out of $Si{O}_4^{4-}$ unit are shared as shown below :
In pyrosilicates, three is only one shared oxygen, in linear chain silicates, 3-D silicates, all four oxygens are shared.
Hence correct option is b.