Which of the following Ce compound is used for making crucibles?

Options

A. `CeO_(3)`
B. CeS
C. `ThO_(2)`
D. `Nd_(2)O_(3)`

Answer

To determine which cerium compound is used for making crucibles, we can follow these steps:

### Step 1: Understand the function of a crucible
A crucible is a container that can withstand high temperatures and is used for melting or heating substances in a laboratory setting. Therefore, the material used to make crucibles must have high thermal stability and resistance to chemical reactions.

### Step 2: Identify cerium compounds
Cerium (Ce) is a rare earth element that forms various compounds. Some common cerium compounds include:
- Cerium oxide (CeO2)
- Cerium sulfate (Ce2(SO4)3)
- Cerium sulfide (CeS)

### Step 3: Research the properties of cerium compounds
Among the cerium compounds, we need to identify which one has the properties suitable for making crucibles. Cerium sulfide (CeS) is known for its high melting point and thermal stability, making it a suitable candidate for crucibles.

### Step 4: Conclusion
Based on the properties of cerium compounds, cerium sulfide (CeS) is the compound used for making crucibles.

### Final Answer
The cerium compound used for making crucibles is **cerium sulfide (CeS)**.

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