The amorphous form of silica is :
Tridymite
Kieselguhr
Cristobalite
Quartz
Silicon Dioxide/ Silica/ Quartz -
Covalent, three dimensional solid network in which each silicon is covalently bond to four oxygen atoms (sp3 hybridisation) forming a tetrahedral structure
- wherein
Function of quartz -
As piezoelectric material in clocks, radio, television broadcasting and mobile communication.
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Quartz, tridymite, cristobalite is crystalline form, and kieselguhr is an amorphous form of silica.
Tridymite
Option 2)Kieselguhr
Option 3)Cristobalite
Option 4)Quartz
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