The metal that is extracted from sea water is

Options

A. `Mg`
B. `Ca`
C. `Be`
D. `Ba`

Answer

To solve the question "The metal that is extracted from seawater is," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Metals Present in Seawater**:
- Seawater contains various dissolved salts, including magnesium salts, sodium salts, calcium salts, and others.

2. **Focus on Magnesium**:
- Among the metals present in seawater, magnesium is significant. It is found in seawater primarily in the form of magnesium chloride (MgCl2) and magnesium sulfate (MgSO4).

3. **Extraction Process**:
- Magnesium is extracted from seawater using a process known as the "do-seawater process." This involves the electrolysis of magnesium chloride.

4. **Abundance of Magnesium**:
- Magnesium is the sixth most abundant element in the Earth's crust and is present in seawater at a concentration of about 0.13% in the form of chlorides and sulfates.

5. **Conclusion**:
- Based on the information gathered, the metal that is primarily extracted from seawater is magnesium.

### Final Answer:
The metal that is extracted from seawater is **magnesium**.

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