Which one among the following is an example of a ferro-electric compound?

Options

A. Quartz
B. Lead chromate
C. Barium titanate
D. Tourmaline

Answer

To determine which among the given options is an example of a ferroelectric compound, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Ferroelectricity**:
- Ferroelectric materials exhibit spontaneous electric polarization that can be reversed by applying an external electric field. This means that these materials have a permanent dipole moment that can be aligned in different directions when an electric field is applied.

2. **Identify Common Ferroelectric Compounds**:
- Some well-known ferroelectric compounds include Barium Titanate (BaTiO₃), Lead Zirconate Titanate (PZT), and Potassium Niobate (KNbO₃).

3. **Examine the Options**:
- If provided with multiple-choice options, look for the compounds listed. Among these, identify which one is recognized as a ferroelectric material.

4. **Select the Correct Answer**:
- From the analysis, it is known that Barium Titanate (BaTiO₃) is a classic example of a ferroelectric compound. Therefore, if Barium Titanate is one of the options, it is the correct answer.

5. **Conclusion**:
- The correct answer to the question is Barium Titanate (BaTiO₃), which is option three.

### Final Answer:
The example of a ferroelectric compound is **Barium Titanate (BaTiO₃)**.

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