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Read the following message passage and a...

Read the following message passage and answer the followed by is silicates are a group of minerals which have general formula `SiO_(2)` the most common of which is quartz. Quartz is a frame work silicate with `SiO_(4)` tetrahydra arranged in spirals. The spirals can turn in clockwise or anticlork wise direction a feature that result in there being two mirror images optically active varities of quartz
The following represents various silicate anions . Their formulae are respectively

A

`SiO_(3)^(2-),SiO_(7)^(2-)`

B

`SiO_(4)^(4-),Si_(3)O_(10)^(8-)`

C

`SiO_(4)^(2-),Si_(3)O_(9)^(2-)`

D

`SiO_(3)^(4-),Si_(3)O_(7)^(8-)`

Text Solution

Verified by Experts

The correct Answer is:
B
`SiO_(4)^(-4),Si_(3)O_(10)^(8-)` [tetrahedral units]
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