Role of HgSO4 in the estimation of COD of waste water is
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Chemical oxygen demand (COD) is used as a measure of oxygen requirement of a. 100% of the theoretical value. Dichromate Reflux Technique Standard Method. heavy metals (HgSO4 and Ag2SO4) should be disposed of as toxic wastes.
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Explanation:
Chemical oxygen demand (COD) is used as a measure of oxygen requirement of a. 100% of the theoretical value. Dichromate Reflux Technique Standard Method. heavy metals (HgSO4 and Ag2SO4) should be disposed of as toxic wastes
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