JAMB Chemistry 2018 Objective — Question 35
Question 35 of 36 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2018 Objective paper, with the correct answer and a full explanation.
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In the laboratory preparation of trioxonitrate (V) acid, the nitrogen (IV) oxide formed as a by-product is removed by
- A. further heating
- B. adding concentrated H₂SO₄
- C. cooling the acid solution with cold water
- D. bubbling air through the acid solutionCorrect
Explanation
Bubbling air through the resulting acid solution helps to remove/oxidise the nitrogen (IV) oxide by-product formed during the preparation.
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