Q- Classify the following as amorphous or crystalline solids polyurethane, naphthalene, benzoic acid, Teflon, potassium nitrate, cellophane, polyvinyl chloride, fiber glass, copper.
Answer- All the substances are classified below-
|Benzoic acid||Crystalline solid|
|Potassium nitrate||Crystalline solid|
|Polyvinyl chloride||Amorphous solid|
|Fiber glass||Amorphous solid|
Note- Amorphous solids are those solids that are solids that do not have a definite form or state. On the other hand, Crystalline solids are those solids that are attached to a highly ordered microscopic structure. You can easily classify them on the basis of their structure.