What Is Responsible for the Brownish Colored Gas When Copper

question 275

Multiple Choice

What is responsible for the brownish colored gas when copper dissolves in nitric acid?

• A)2 NO(g)+ O₂(g)→ 2 NO₂(g)
• B)2 N₂(g)+ O₂(g)→ 2 NO(g)
• C)NH₄NO₃(l)→ N₂O(g)+ 2 H₂O(g)
• D)2 NO₂(g)→ N₂O₄(g)

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