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Silica (SiO(2)) can be crystalline as we...

Silica `(SiO_(2))` can be crystalline as well as amorphous, with following properties
I: crystalline
II: the `SiO_(4)^(4-)`  tetrahedra are randomly joined giving rise to polymeric chains of three-dimensional sheets
III : have high and sharp m.p
Which of I, II and III are not matched with amorphous solids  

A

I

B

III

C

I,III

D

II

Text Solution

Verified by Experts

The correct Answer is:
C
Crystalline form and high & sharp M.P are not the characterstics of Amorphoussolids. Because amorphous solids are consideral ar pseudo solid.
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