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.
