Classify the following as amorphous or crystalline solids : Polyuretha – InterviewSolution

1.	Classify the following as amorphous or crystalline solids : Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.
Answer» SOLUTION :AMORPHOUS solids: Polyurethane, teflon, cellophane, polyvinyl CHLORIDE, fibre glass. Crystalline solids: BENZOIC acid, naphthalene, potassium nitrate, COPPER.

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