Chile salpeter is

Options

A. `KNO_(3)`
B. `NaNO_(3)`
C. `Na_(2)SO_(4)`
D. `Na_(2)S_(2)O_(3)`

Answer

**Step-by-Step Solution:**

1. **Identify the term "Chile Salpeter":**
- Chile Salpeter is a term commonly used to refer to sodium nitrate.

2. **Chemical Formula of Sodium Nitrate:**
- The chemical formula for sodium nitrate is NaNO3.

3. **Classification of Sodium Nitrate:**
- Sodium nitrate is classified as a salt. It is formed from the reaction of sodium hydroxide (a strong base) and nitric acid (a strong acid).

4. **Origin of the Name "Chile Salpeter":**
- The name "Chile Salpeter" comes from the large deposits of sodium nitrate found in the Atacama Desert in Chile. This region has historically been a significant source of sodium nitrate.

5. **Conclusion:**
- Therefore, Chile Salpeter is sodium nitrate (NaNO3), and it is also known as Peru saltpeter due to its historical significance and deposits found in Peru.

**Final Answer:**
- Chile Salpeter is sodium nitrate (NaNO3).

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