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At high temperature, nitrogenn directly ...

At high temperature, nitrogenn directly combines with

A

Zn

B

Mg

C

Al

D

Fe

Text Solution

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The correct Answer is:
To solve the question of which metals combine directly with nitrogen at high temperatures, we can follow these steps: ### Step 1: Identify the Metals We are given four metals: Zinc (Zn), Magnesium (Mg), Aluminium (Al), and Iron (Fe). ### Step 2: Understand the Properties of Nitrogen Nitrogen is a relatively inert gas at room temperature but can react with certain metals at high temperatures to form nitrides. ### Step 3: Analyze Each Metal - **Zinc (Zn)**: Zinc does not react directly with nitrogen at high temperatures. - **Magnesium (Mg)**: Magnesium is known to react with nitrogen at high temperatures (around 800°C) to form magnesium nitride (Mg3N2). - **Aluminium (Al)**: Aluminium can also react with nitrogen at high temperatures (around 900°C) to form aluminium nitride (AlN). - **Iron (Fe)**: Iron does not combine directly with nitrogen at high temperatures. ### Step 4: Conclusion From the analysis, we find that the metals that directly combine with nitrogen at high temperatures are Magnesium (Mg) and Aluminium (Al). ### Final Answer At high temperatures, nitrogen directly combines with Magnesium and Aluminium. ---
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