_High purity nitrogen is used in$? – McqOptions

MCQOPTIONS

1.	_High purity nitrogen is used in$?
A.	Making protective gas (95% N‚Äö√á√á + 5% H‚Äö√á√á) for annealing of cold rolled steel strip coils
B.	Fire fighting purposes
C.	Both A & B
D.	Neither A nor B
Answer» D. Neither A nor B

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