Which of the following is not the property of amorphous solids?
Answer & explanation
Correct answer: option 4
| Property | Crystalline solids | Amorphous solids |
| Shape | Definite characteristic geometrical shape | Irregular shape |
| Melting point | Melt at a sharp and characteristic temperature | Gradually soften over a range of temperature |
| Cleavage property | When cut with a sharp edged tool, they split into two pieces and the newly generated surfaces are plain and smooth | When cut with a sharp edged tool, they cut into two pieces with irregular surfaces |
| Heat of fusion | They have a definite and characteristic enthalpy of fusion | They do not have definite enthalpy of fusion |
| Anisotropy | Anisotropic in nature | Isotropic in nature |
| Nature | True solids | Pseudo solids or super cooled liquids |
| Order in arrangement of constituent particles | Long range order | Only short range order |