Chemistry The BOD values of water indicate the Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical oxidation Amount of organic debris Amount of oxygen used for biochemical reduction Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical oxidation Amount of organic debris Amount of oxygen used for biochemical reduction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet rays can be used in water treatment as Disinfectant Precipitator Hydrolyser Flocculator Disinfectant Precipitator Hydrolyser Flocculator ANSWER DOWNLOAD EXAMIANS APP
Chemistry If a buffer solution is diluted its pH Is decreased Is increased Remains same Will slowly increase and then it will decrease Is decreased Is increased Remains same Will slowly increase and then it will decrease ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Nitrous oxide Carbon dioxide Hydrocarbons Sulphur dioxide Nitrous oxide Carbon dioxide Hydrocarbons Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gypsum is used for improvement of: Saline soils Podsols Acidic soils Alkaline soils Saline soils Podsols Acidic soils Alkaline soils ANSWER DOWNLOAD EXAMIANS APP
Chemistry Zinc sulphide is commonly used as Fungicide Rodenticide Herbicide Deodorant Fungicide Rodenticide Herbicide Deodorant ANSWER DOWNLOAD EXAMIANS APP
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