MCQ
Which of the following is a non$-$crystalline solid?
- A$\text{CsCl}$
- B$\text{NaCl}$
- C$\text{CaF}_2$
- ✓Glass
✓
Answer
Correct option: D.
Glass
$\text{CsCl, NaCl}$ and $\text{CaF}_2$ are crystalline solids whereas glass is an amorphous solid as it does not has well developed perfectly ordered crystalline structure.
Other amorphous solids include tar, rubber, plastic, butter etc.
Other amorphous solids include tar, rubber, plastic, butter etc.
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