Irradiation of water by ultraviolet light of suitable wavelength is co – McqOptions

MCQOPTIONS

1.	Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in
A.	food industry.
B.	municipal sewage treatment.
C.	petroleum refinery.
D.	iron & steel plant.
Answer» B. municipal sewage treatment.

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