Which of the following reactions of potassium superoxide supply oxygen gas in the breathing equipment's used in space and submarines?
(A) reaction of superoxide with nitrogen in the exhaled air.
(B) reaction of superoxide with moisture in the exhaled air
(C) reaction of superoxide with carbon dioxide in the exhaled air.
(A). (A), (B) and (C)
(B). (B) and (C) only
(C). (B) only
(D). (A) and (B) only
