Which is not the compound of sodium?

Options

A. Chlle salt petre
B. Salt petre
C. Glauber's salt
D. Soda ash

Answer

To determine which compound is not a compound of sodium from the given options, we will analyze each option step by step.

### Step 1: Analyze the first option - Chili Saltpeter
- **Definition**: Chili saltpeter is a common name for sodium nitrate.
- **Chemical Formula**: The chemical formula for sodium nitrate is NaNO3.
- **Conclusion**: Since it contains sodium (Na), chili saltpeter is a compound of sodium.

### Step 2: Analyze the second option - Saltpeter
- **Definition**: Saltpeter is commonly known as potassium nitrate.
- **Chemical Formula**: The chemical formula for potassium nitrate is KNO3.
- **Conclusion**: Since it contains potassium (K) and not sodium (Na), saltpeter is NOT a compound of sodium.

### Step 3: Analyze the third option - Globosalt
- **Definition**: Globosalt is a common name for sodium sulfate decahydrate.
- **Chemical Formula**: The chemical formula for sodium sulfate decahydrate is Na2SO4·10H2O.
- **Conclusion**: Since it contains sodium (Na), globosalt is a compound of sodium.

### Step 4: Analyze the fourth option - Soda Ash
- **Definition**: Soda ash is a common name for sodium carbonate.
- **Chemical Formula**: The chemical formula for sodium carbonate is Na2CO3.
- **Conclusion**: Since it contains sodium (Na), soda ash is a compound of sodium.

### Final Conclusion
Among the given options, the compound that is NOT a compound of sodium is **Saltpeter (Potassium Nitrate)**.

### Answer
The correct option is **Saltpeter (Potassium Nitrate)**.

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