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Silicates

How many oxyg...

Question

How many oxygen atoms are shared per $S i O_{4}$ tetrahedral unit in mineral wollastonite $[C a_{3} (S i_{3} O_{9})]$ ?

A

2

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B

3

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C

1

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D

4

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Solution

The correct option is A 2
It is cyclic silicate which has anion $S i_{3} O_{9}^{6 -}$ .
Two atoms of oxygen are shared per $S i O_{4}$ tetrahedral unit.

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