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 of the given options is not a compound of sodium, we will analyze each option one by one.

### Step 1: Analyze the options
1. **Chilli Salt Petrol**: This is not a standard chemical name, but it likely refers to a mixture that includes sodium chloride (table salt). Sodium chloride is a compound of sodium.

2. **Sodium Nitrate**: The chemical formula for sodium nitrate is NaNO3. This is a compound that contains sodium.

3. **Potassium Nitrate**: The chemical formula for potassium nitrate is KNO3. This compound contains potassium, not sodium. Therefore, it is not a compound of sodium.

4. **Sodium Sulfate**: The chemical formula for sodium sulfate is Na2SO4. This compound contains sodium.

### Step 2: Identify the answer
From the analysis, we can see that the only option that does not contain sodium is **Potassium Nitrate (KNO3)**.

### Conclusion
The compound that is not a compound of sodium is **Potassium Nitrate**.

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