5% purity oxygen is used in_____________________? | MCQ Hive

Chemical Engineering

Q 5% purity oxygen is used in_____________________?

A A. Cutting and welding by oxy-acetylene flame
B B. Hospitals for medicinal purposes
C C. Gas masks and artificial breathing apparatus
D D. All a, b, and c.

Previous Chalcopyrite is the main ore of_________________?

Next Zeigler process__________________?

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