Glass is a

Options

A. Micro - crystalline solid
B. Super cooled liquid
C. Gel
D. Polymeric mixture

Answer

**Step-by-Step Text Solution:**

1. **Understanding Glass**: Glass is a material commonly used in windows, bottles, and various other products. It is primarily made from silica (SiO2) and has unique properties.

2. **Classification of Solids**: Solids can be classified into two main categories: crystalline and amorphous. Crystalline solids have a well-defined geometric structure, while amorphous solids lack this ordered arrangement.

3. **Properties of Glass**: Glass does not exhibit a long-range order in its structure, which is characteristic of amorphous solids. Instead, it has a disordered arrangement of atoms.

4. **Supercooled Liquid Concept**: The term "supercooled liquid" refers to a state where a liquid is cooled below its freezing point without solidifying. In the case of glass, it behaves like a supercooled liquid because, although it is solid, it does not have a crystalline structure.

5. **Conclusion**: Based on the properties and classification of glass, it can be concluded that glass is best described as a supercooled liquid.

6. **Final Answer**: Therefore, the correct option is option 2: Glass is a supercooled liquid.

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