JAMB Biology 2015 Objective — Question 3

Question 3 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2015 Objective paper, with the correct answer and a full explanation.

Oxygen in air can be removed using

A. lime water or caustic soda solution
B. caustic soda solution
C. alkaline pyrogallol solutionCorrect
D. slaked lime

Explanation

Alkaline pyrogallol solution is commonly used to absorb/remove oxygen from air in gas analysis.

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