Pure nitrogen can be obtained by which of the following reactions?

Question

Question

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बिहार उच्च माध्यमिक शिक्षक Chemistry Official Paper (Held On 26 Aug, 2023 Shift 2)

Answer 1

The correct answer is option 4.

Concept:

Decomposition Reactions: A chemical decomposes into two or more simpler compounds during a decomposition reaction.

Redox Reactions: One or more elements undergo a change in their redox state during a redox (reduction–oxidation) reaction.

These reactions usually involve the exchange of electrons between different chemical entities.

Explanation:

All three reactions produce nitrogen gas (N₂):

Nitrogen is transformed from a chemical form into nitrogen gas in each of these processes.
The heat breakdown of ammonium dichromate is the first reaction.
The breakdown of barium azide is the second; and the reaction of ammonia with copper oxide is the third.