Which gas is produced when copper reacts with dilute nitric acid?
Answer and explanation
Correct answer: D. Nitrogen monoxide
Dilute nitric acid is reduced to NO by copper; with concentrated acid NO forms.
Answer: Nitrogen monoxide.
Why not the others: Hydrogen: copper does not displace hydrogen from acids. Nitrogen dioxide: this is formed with concentrated nitric acid. Oxygen: it is not produced.
Answer: Nitrogen monoxide.
Why not the others: Hydrogen: copper does not displace hydrogen from acids. Nitrogen dioxide: this is formed with concentrated nitric acid. Oxygen: it is not produced.
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