Nitrochalk is

Options

A. `CAN`
B. `CaNCN`
C. `(NH_4)_2 SO_4`
D. `Ca(NO_3)_2. CaO`

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Term "Nitrochalk":**
- Nitrochalk is commonly referred to as calcium ammonium nitrate (CAN). It is a compound that consists of calcium, nitrogen, and ammonium ions.

2. **Chemical Formula:**
- The chemical formula for nitrochalk can be represented as \( \text{Ca(NO}_3\text{)}_2 \cdot \text{NH}_4\text{NO}_3 \). This indicates that it contains both calcium nitrate and ammonium nitrate.

3. **Common Names:**
- Nitrochalk is also known as nitro limestone or nitro lime stone. These names highlight its use and composition.

4. **Usage:**
- It is primarily used as an inorganic fertilizer. The compound is valued for its high nitrogen content, which is essential for plant growth.

5. **Nitrogen Content:**
- Nitrochalk contains about 4% nitrogen, making it a significant source of this nutrient for crops.

6. **Conclusion:**
- Therefore, nitrochalk (calcium ammonium nitrate) is an inorganic fertilizer that is important in agriculture for providing nitrogen to plants.

**Final Answer:**
Nitrochalk is calcium ammonium nitrate (CAN), an inorganic fertilizer that contains about 4% nitrogen.

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