The product obtained as a result of a reaction of nitrogen with $CaC_2$ is
- ${CaCN }$
- ${CaCN3 }$
- ${Ca2CN }$
- ${Ca(CN)2 }$
The Correct Option is D
Solution and Explanation
Reaction of Nitrogen with Calcium Carbide
When nitrogen gas (\( \text{N}_2 \)) reacts with calcium carbide (\( \text{CaC}_2 \)), the product formed is calcium cyanide (\( \text{CaCN}_2 \)) along with carbon. This reaction is commonly known as the formation of calcium cyanide, and it occurs under high temperatures. Let's break down the reaction and the process involved:
Chemical Reaction:
The chemical equation for the reaction is as follows:
\(\text{CaC}_2 + \text{N}_2 \rightarrow \text{CaCN}_2 + \text{C}\)
Step-by-step Breakdown:
- Calcium Carbide (\( \text{CaC}_2 \)): Calcium carbide is a chemical compound made up of calcium and carbon. It is typically produced by heating lime (calcium oxide) with coke (carbon) in an electric furnace.
- Nitrogen Gas (\( \text{N}_2 \)): Nitrogen gas is abundant in the atmosphere and is often used in chemical reactions involving the formation of compounds like cyanides.
- Calcium Cyanide (\( \text{CaCN}_2 \)): Calcium cyanide is an important chemical used in various industrial applications, such as in gold extraction and chemical synthesis.
- Carbon (\( \text{C} \)): Carbon is released as a by-product in the form of graphite or other carbon forms during this reaction.
Reaction Process:
In the reaction, the calcium carbide (\( \text{CaC}_2 \)) reacts with nitrogen gas (\( \text{N}_2 \)) under high temperature conditions to form calcium cyanide (\( \text{CaCN}_2 \)) and carbon. The reaction proceeds as follows:
\(\text{CaC}_2 + \text{N}_2 \rightarrow \text{CaCN}_2 + \text{C}\)
Applications of Calcium Cyanide:
Calcium cyanide has several important industrial uses:
- Gold Extraction: It is used in the extraction of gold from its ores, where it reacts with gold to form a soluble complex that can be further processed.
- Chemical Manufacturing: Calcium cyanide is used in the production of various chemicals, including fertilizers and insecticides.
- Heat Treatment: It is sometimes used in heat treatment processes due to its carbon content and the properties of the compound.
Conclusion:
In summary, when calcium carbide (\( \text{CaC}_2 \)) reacts with nitrogen gas (\( \text{N}_2 \)), it produces calcium cyanide (\( \text{CaCN}_2 \)) and carbon. This reaction plays an important role in industrial chemistry, especially in the production of materials used in gold extraction and chemical synthesis.
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