Commercially oxygen is usually obtained by
A)decomposition of mercury(II)oxide.
B)decomposition of potassium chlorate.
C)electrolytic decomposition of water.
D)fractional distillation of air.

Question

Quizplus · Accepted Answer

Commercially, oxygen is usually obtained by fractional distillation of air. Air is separated into its component gases using cryogenic distillation, with oxygen being one of the gases collected. This method is more efficient and cost-effective than other methods such as the electrolytic decomposition of water or the decomposition of mercury(II) oxide.

Commercially Oxygen Is Usually Obtained by