Which one of the following correctly defines the state of glass ?

Options

A. Crystalline solid
B. Super cooled liquid
C. Condensed gas
D. Liquid crystal

Explanation

To determine the correct definition of the state of glass, we need to analyze the properties of glass and the options provided.

### Step-by-Step Solution:

1. **Understanding Glass**:
- Glass is a solid material that is typically hard and brittle. It is commonly used in windows, bottles, and various other applications.

2. **Identifying the Structure of Glass**:
- Glass is classified as an amorphous solid. This means that it does not have a long-range ordered structure like crystalline solids. Instead, its molecular arrangement is disordered.

3. **Properties of Glass**:
- Glass is hard, which means it can withstand significant force without deforming.
- It is also brittle, meaning it can break or shatter when subjected to stress.
- The term "super cold liquid" is sometimes used to describe glass because it flows very slowly over time, but this is a misrepresentation of its actual state.

4. **Evaluating the Options**:
- The question likely provides multiple-choice answers. Among these, we need to identify which one correctly describes glass.
- The correct definition would emphasize that glass is an amorphous solid rather than a liquid.

5. **Conclusion**:
- Based on the properties discussed, the correct answer is that glass is an "amorphous solid" which is hard and brittle.

### Final Answer:
The correct definition of the state of glass is that it is an **amorphous solid**.

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