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Which gas is released when copper chips are subjected to concentrated nitric acid?(a) Nitrogen (I) oxide(b) Nitrogen (II) oxide(c) Nitrogen (III) oxide(d) Nitrogen (IV) oxideI had been asked this question by my college professor while I was bunking the class.My question is taken from P-Block topic in chapter P-Block Elements of Chemistry – Class 12

Answer»

Correct choice is (d) Nitrogen (IV) oxide

Explanation: Treating COPPER chips with CONCENTRATED nitric acid releases toxic BROWN gas, NO2, nitrogen (IV) oxide. It is a reddish-brown gas with pungent odor.



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