P-Block Elements Ques 532

Question: Example of a three-dimensional silicate is:

Options:

A) Zeolites

B) Ultramarines

C) Feldspars

D) Beryls

Show Answer

Answer:

Correct Answer: C

Solution:

The feldspars are most abundant aluminosilicate minerals in the Earth surface. The silicon atoms and aluminium atoms occupy the centres of interlinked tetrahedral of $ SiO{{_4^{4-}}^{~}} $ and $ AlO_4^{5-} $ . These tetrahedral connect at each corner to other tetrahedral forming an intricate, three dimesional, negatively charged framework. The sodium cations sit within the voids in this structure.



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