General Knowledge - General Science - Discussion

16. 

Glass is made of the mixture of

[A]. quartz and mica
[B]. sand and silicates
[C]. salt and quartz
[D]. sand and salt

Answer: Option B

Explanation:

No answer description available for this question.

Dimpal Sharma said: (Feb 21, 2017)  
Silica (the chemical compound SiO2) is a common fundamental constituent of glass. In nature, vitrification of quartz occurs when lightning strikes sand, forming hollow, branching rootlike structures called fulgurite.

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