What is the chemical formula of Silica?

 

A.NaAlO2
B.H2O
C.Al2O3
D.SiO2     

Solution: D

The Chemical formula for Silica is SiO2. Silica is the common name for Silicon Dioxide. It is commonly found in quartz. SiO2 forms 3-dimensional network solids in which each silicon atom is covalently bonded in a tetrahedral manner to 4 oxygen atoms. 

Hence, option (D) is correct.

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