Most metals have very high melting and boiling points. Some metals , such as________have low melting and boiling points .

Options

A. Carbon
B. Graphite
C. Oxygen
D. Sodium

Answer

To answer the question about metals that have low melting and boiling points, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the General Property of Metals**:
- Most metals are known to have high melting and boiling points due to the strong metallic bonds present in their structure.

2. **Identifying Exceptions**:
- While most metals have high melting and boiling points, there are exceptions. We need to identify which metals have lower melting and boiling points.

3. **Analyzing the Options**:
- The question provides options that include Carbon, Graphite, Oxygen, and Sodium. We need to evaluate each option to determine if it is a metal and if it has low melting and boiling points.

4. **Evaluating Each Option**:
- **Carbon**: This is a non-metal, so it cannot be the answer.
- **Graphite**: This is an allotropic form of Carbon and is also not a metal.
- **Oxygen**: This is a non-metal, so it is not the answer.
- **Sodium**: Sodium is a metal. Its melting point is approximately 97.81 degrees Celsius, and its boiling point is about 882.9 degrees Celsius, which are relatively low compared to many other metals.

5. **Conclusion**:
- Based on the evaluation, Sodium is the metal that has low melting and boiling points compared to other metals.

### Final Answer:
Some metals, such as **Sodium**, have low melting and boiling points.

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