JAMB Mathematics 2022 Objective — Question 33
Question 33 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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Ammonia describes which of the following?
- A. A dense white fume when mixed with HCl
- B. A substance stored under paraffin
- C. A gas that bleaches by reduction
- D. Turns red litmus blueCorrect
Explanation
Ammonia is the only known gas that turns red litmus blue (it is the only alkaline gas). It also forms white fumes with HCl, but this is a property, not its defining description.
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