p-Block Elements-I 2 Question 4
4. The amorphous form of silica is
(2019 Main, 9 April II)
(a) tridymite
(b) kieselguhr
(c) cristobalite
(d) quartz
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Solution:
- Silica occurs in nature in several amorphous and crystalline forms. Kieselguhr is the amorphous form of silica. Quartz, tridymite and cristobalite are crystalline forms of silica.
