Nitrolim is

Options

A. `CaCN_2`
B. `CaCN_2 + C`
C. `CaC_2`
D. `CaCN_2 + CaC_2`

Answer

**Step-by-Step Solution:**

1. **Understanding Nitrolim**: Nitrolim is a nitrogenous fertilizer. It is important to identify its chemical composition and how it is formed.

2. **Identifying the Components**: The key component of Nitrolim is Calcium Cyanamide, which has the chemical formula CaCN2.

3. **Formation Reaction**: Nitrolim is produced by passing nitrogen gas over calcium carbide (CaC2) at a high temperature (around 1070 K). The reaction can be summarized as:
\[ \text{CaC}_2 + \text{N}_2 \rightarrow \text{CaCN}_2 + \text{C} \]
This indicates that calcium carbide reacts with nitrogen to form calcium cyanamide and carbon.

4. **Analyzing the Options**: The options provided are:
- Option 1: CaCN2
- Option 2: CaCN2 + Carbon
- Option 3: CaCN2
- Option 4: CaCN2 + CaCN2

5. **Selecting the Correct Option**: Since Nitrolim is formed from the reaction of calcium carbide and nitrogen, resulting in a mixture of calcium cyanamide and carbon, the correct option is:
- **Option 2: CaCN2 + Carbon**

6. **Conclusion**: Therefore, the correct answer to the question "Nitrolim is" is **CaCN2 + Carbon**.

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