JAMB Chemistry 2017 Objective — Question 26
Question 26 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2017 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. A. further heating
- B. B. adding concentrated H2SO4
- C. C. cooling the acid solution with cold water
- D. D. bubbling air through the acid solutionCorrect
Explanation
The yellowish NO2 impurity dissolved in the freshly prepared acid is removed by bubbling air through the acid solution.
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