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What is the source of obtaining oxygen industrially?

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in Chemistry – Class 12 by (188k points)
What is the source of obtaining oxygen industrially?

(a) Metallic ores

(b) Air

(c) Oxygen furnace

(d) Organic compounds

The question was asked in an online quiz.

The doubt is from P-Block Elements in chapter P-Block Elements of Chemistry – Class 12

1 Answer

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Best answer
Right option is (b) Air

To explain: Industrially, oxygen is isolated by implying the technique of fractional distillation of liquefied air. Prior to the main operation, air is cleared and filtered off to remove impurities such as carbon dioxide and water vapor. Oxygen distills off as a liquid at -183°C.

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