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General Knowledge · Q856

Practice

Competitive Exams · General Knowledge · question 856

Q856

The chemical name of quartz is

A.
Calcium oxide
B.
Calcium phosphate
C.
Sodium phosphate
D.
Sodium silicate
Answer

Answer: Option D

Solution

Answer: Option D
Solution:
Quartz is a compound of one part silicon and two parts of oxygen, silicon dioxide, SiO2. Quartz is the most abundant silica mineral. It is used in a number of industries, the important being glass, foundry, sodium silicate, silicon alloys, etc. The various grades of sodium silicate are characterized by their SiO2:Na2O weight ratio.