Bulk oxygen is produced through which of the following?
a. Molecular sieves c. Semipermeable membranes
b. Fractional distilla-tion d. Combustion of nat-ural gas
ANS: B
Fractional distillation generates bulk oxygen. Molecular sieves and semipermeable membranes are used in oxygen concentrators. The combustion of natural gas produces carbon dioxide.
Health Professions
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