A) A glass has high coefficient of expansion
B) Break?s up to red hot
C) Pure \[Si{{O}_{2}}\]
D) Very hard
Correct Answer: C
Solution :
[c] When pure silica or quartz is heated to high temperature in an electric vaccum furnace, a transparent glass like substance called silica glass, quartz glass or vitrified silica is obtained.You need to login to perform this action.
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