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The structural unit of pyrosilicates is 

Option: 1

SiO_{4}^{2-}


Option: 2

Si_{2}O_{7}^{2-}


Option: 3

Si_{2}O_{7}^{6-}


Option: 4

\left ( SiO_{3} \right )_{n}^{2-}


Answers (1)

best_answer

As we have learnt,

Pyrosilicates -

Two tetrahedral units share one oxygen atom between them containing basic unit of Si_2O_7^{6-} anion

E.g. Thortveitite \left ( Sc_{2}Si_{2}O_{7} \right )

Therefore, option (3) is correct.

Posted by

rishi.raj

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