Identify the cyclic silicate ion given in the figure below

Options

A. `[Si_(4)O_(25)]^(24-)`
B. `[Si_(6)O_(18)]^(18-)`
C. `[Si_(4)O_(12)]^(12)`
D. `[Si_(6)O_(24)]^(12-)`

Answer

B

Explanation

Cyclic or ring silicates have general formula
`underset(Si_(3)O_(9^(6-)))underset(darr)((Si-O_(3^(2-)))_(n))` or `underset(Si_(6)O_(18^(12-)))underset(darr)((Si-O_(3))_(n^(2n-)))`