First slide

13th group or boron group

Question

Which of the following statements are true about Quartz

a) It is pure crystalline form of silica b) It is Tetrahedral polymer of ${SiO}_{2}$
c) UV light Can pass through Quartz

Moderate

A

a , b correct
B

b, c correct
C

a , c correct
D

All are correct

Solution

Crystaline Allotropeies of Silica $({SiO}_{2})$ are Quartz, Tridymite and Crystobalite
Quartz is pure form of Silica and it is Also Known as rock Crystal
${SiO}_{2}$ has Tetrahedral polymic structure

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