A) Zeolites
B) Ultramarines
C) Feldspars
D) Beryls
Correct Answer: C
Solution :
[c] 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.You need to login to perform this action.
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