Same chapter3 marksDifficulty: Medium
Give two examples showing that concentrated nitric acid is a powerful oxidising agent.
Study of Compounds: Nitric Acid
3 marksDifficulty: Medium
Write the equation for the reaction of dilute nitric acid with copper and name the gas evolved.
Original Khojo Papers practice question — not from a past board paper.
Answer
3Cu + 8HNO3 (dilute) → 3Cu(NO3)2 + 2NO + 4H2O. Nitric oxide is evolved, which turns reddish brown in air as it forms nitrogen dioxide.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Concentrated nitric acid with copper gives nitrogen dioxide directly.
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