Which of these gases is released upon treating zinc with diluted and then concentrated nitric acid?(a) Nitrogen dioxide and nitrous oxide(b) Nitric oxide and nitrous oxide(c) Nitrous oxide and nitrogen dioxide(d) Nitrous oxide and nitric oxideThis question was posed to me during an online interview.This interesting question is from P-Block Elements in section P-Block Elements of Chemistry – Class 12

Which of these gases is released upon treating zinc with diluted and t

1.	Which of these gases is released upon treating zinc with diluted and then concentrated nitric acid?(a) Nitrogen dioxide and nitrous oxide(b) Nitric oxide and nitrous oxide(c) Nitrous oxide and nitrogen dioxide(d) Nitrous oxide and nitric oxideThis question was posed to me during an online interview.This interesting question is from P-Block Elements in section P-Block Elements of Chemistry – Class 12
Answer» The CORRECT answer is (c) Nitrous oxide and nitrogen dioxide To explain: The PRODUCTS released depend on the concentration of NITRIC ACID. In case of zinc metal, diluted nitric acid treatment RELEASE nitrous oxide and concentrated nitric acid causes the release of nitrogen dioxide.

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