What is the name of the process in which reducing chemical such as sul – McqOptions

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1.	What is the name of the process in which reducing chemical such as sulphur dioxide (SO2), sodium trisulphite (NaHSO3) and sodium sulphite (Na2SO3) is added to remove unwanted residual of chlorine from water?
A.	Chlorination
B.	Hydrogenation
C.	Dechlorination
D.	Sulphurification
Answer» D. Sulphurification

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