Which of the following mineral does not contain sodium ?

Options

A. Trona
B. Borax
C. Epsomite
D. Cerussite

Answer

To determine which of the following minerals does not contain sodium, we will analyze the chemical formulas of each mineral provided in the options.

1. **Trona**:
- Formula: Na₃HCO₃(CO₃)₂·2H₂O
- Contains sodium (Na).

2. **Borax**:
- Formula: Na₂B₄O₇·10H₂O
- Contains sodium (Na).

3. **Epsomite**:
- Formula: MgSO₄·7H₂O
- Does not contain sodium (Na).

4. **Cerucite**:
- Formula: PbCO₃
- Does not contain sodium (Na).

Now, we summarize the findings:
- **Trona**: Contains sodium
- **Borax**: Contains sodium
- **Epsomite**: Does not contain sodium
- **Cerucite**: Does not contain sodium

From this analysis, we conclude that the minerals that do not contain sodium are **Epsomite** and **Cerucite**.

**Final Answer**: Epsomite and Cerucite do not contain sodium.