Question

In which of the following silicates,only two corners per tetrahedron are shared ?
(i) Pyro silicate
(ii)Cyclic silicate
(iii) Double Chain silicate
(iv)Sheet silicate
(v) 3D silicate
(vi) sheet silicate

• A. $\left(ii\right)$ and $\left(iv\right)$
• B. $\left(iv\right)$ and $\left(vi\right)$ only
• C. $\left(i\right)$ and $\left(vi\right)$ only
• D. $\left(ii\right)$ and $\left(iv\right)$ only

Answer 1

The correct option is A $\left(ii\right)$ and $\left(iv\right)$

(i) Pyro silicates : ($1$ corner O-atom per tetrahedron is shared)
(ii) Cyclic silicates : ($2$ corner O-atom per tetrahedron is shared)
(iii) Double chain silicates (One unit shares two corner O-atom while one unit shares three corner O-atom)
(iv) Single chain silicate : ($2$ corner O-atom are shared)
(v) 3D silicate : ($4$ corner O-atom are shared)
(vi) Sheet silicates : ($3$ corner O-atom are shared)