Mercury containers are made of

Options

A. `Fe`
B. `Pb`
C. `Sn`
D. `Zn`

Answer

To determine what materials are used to make containers for mercury, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Properties of Mercury**:
- Mercury is a liquid metal at room temperature. This unique property means that it cannot be stored in just any container.

2. **Identify the Requirement for the Container Material**:
- The material used for the container must not react with mercury. Specifically, it should not form an amalgam with mercury.

3. **Know the Amalgamation Concept**:
- Amalgamation refers to the process where a metal combines with mercury to form an amalgam. Many metals can form amalgams with mercury, which would make them unsuitable for use as containers.

4. **Identify Suitable Materials**:
- Among the metals, only a few do not form amalgams with mercury. The two notable metals that do not form amalgams with mercury are:
- Iron (Fe)
- Platinum (Pt)

5. **Conclusion**:
- Given that iron does not amalgamate with mercury, it is commonly used to make containers for storing and transporting mercury. Therefore, the correct answer to the question is that mercury containers are made of **iron**.

### Final Answer:
Mercury containers are made of **iron**.

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