Which of the following is obtained when `N_2` reacts with calcium carbide?

Options

A. Calcium cyanate
B. Calcium acetate
C. Calcium cyanamide
D. Calcium carbonate

Explanation

To determine the product formed when nitrogen gas (N₂) reacts with calcium carbide (CaC₂), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The reactants in this reaction are nitrogen gas (N₂) and calcium carbide (CaC₂).

2. **Write the Chemical Reaction**:
- The reaction between calcium carbide and nitrogen can be represented as:
\[ \text{CaC}_2 + \text{N}_2 \rightarrow \text{CaCN}_2 \]
- Here, calcium carbide reacts with nitrogen to form calcium cyanamide (CaCN₂).

3. **Identify the Product**:
- The product formed from the reaction is calcium cyanamide, which is also known as calcium cyanide or black cyanide.

4. **Check the Options**:
- Now, we compare the product with the given options:
- Option A: Calcium cyanate
- Option B: Calcium acetate
- Option C: Calcium cyanamide
- Option D: Calcium carbonate
- From our reaction, we see that the correct product is calcium cyanamide, which corresponds to Option C.

5. **Conclusion**:
- Therefore, when nitrogen reacts with calcium carbide, the product formed is calcium cyanamide (CaCN₂).

### Final Answer:
The correct answer is **Option C: Calcium cyanamide**.

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