Multiple choice

Glass is categorised as

  1. a microcrystalline solid

  2. supercooled liquid

  3. gel

  4. polymeric mixture

  5. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Glass is a supercooled liquid, which forms a non-crystalline solid. The common lime-soda glass used for bottles and jars is a super cooled mixture of sodium and calcium silicates.

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