`(Si_(2)O_(5))_(n)^(2n-)` anion is obtained when:

Options

A. no oxygen of a `SiO_(4)^(4-)` tetrahedron is shared with another `SiO_(4)^(4-)` tetrahedron
B. one oxygen of a `SiO_(4)^(4-)` tetrahedron is shared with another `SiO_(4)^(4-)` tetrahedron
C. two oxygen of a `SiO_(4)^(4-)` tetrahedron are shared with another `SiO_(4)^(4-)` tetrahedron
D. Three oxygen of a `SiO_(4)^(4-)` tetrahedron are shared with another `SiO_(4)^(4-)` tetrahedron

Answer

D

Explanation

total no. of oxygen atoms per silicon atom`=(1)/(2)+(1)/(2)+(1)/(2)+1=2.5`
`therefore`Formula `Si_(2)O_(5)^(2-)`