Classify the following as amorphous or crystalline solids:
Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.
Solids are classified into 2 types:
Crystalline solids |
Amorphous solids |
Crystalline solids-exists as small crystals,each crystal having a characterstic geometrical shape.The atoms,ions or molecules are arranged in a regular, repeating three dimensional pattern called the crystal lattice. |
Amorphous solids( Greek term amorphous-no form)- has atoms, molecules or ions arranged at random & lacks the ordered crystalline lattice.
|
Naphthalene, benzoic acid, potassium nitrate, copper |
Polyurethane, teflon, cellophane, polyvinyl chloride, fibre glass |
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Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 3: Classify the following as amorphous or crystalline solids: Polyurethane, naphthalene, benzoic acid,....
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