Which among the following is NOT an amorphous solid?
Which among the following is NOT an amorphous solid?
Rubber
Butter
Tar
Camphor
Solution
- Solids can be classified as crystalline or amorphous on the basis of the nature of order present in the arrangement of their constituent particles.
Crystalline solid
- A crystalline solid usually consists of a large number of small crystals, each of them having a definite characteristic geometrical shape
- The arrangement of constituent particles (atoms, molecules or ions) in a crystal is ordered and repetitive in three dimensions.
- There is a regular pattern of arrangement of particles which repeats itself periodically over the entire crystal.
- Example - Sodium chloride, quartz, diamonds.
Amorphous solid
- In amorphous solid the arrangement of building constituent is not regular but haphazard.
- They have short range order and are isotropic in nature.
- Example: Silicon, quartz, glass etc.
- Whereas are crystalline solid in which the arrangement of building constituent is regular.