Chemistry Ultraviolet rays can be used in water treatment as Hydrolyser Precipitator Flocculator Disinfectant Hydrolyser Precipitator Flocculator Disinfectant ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most common salt in sea water ? Magnesium sulphate Potassium chloride Sodium chloride Calcium carbonate Magnesium sulphate Potassium chloride Sodium chloride Calcium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the naturally occuring heaviest element Mercury Uranium Thorium Protactinium Mercury Uranium Thorium Protactinium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief source for the production of nitrogeneous fertilizers is : Nitrogen Nitrogen dioxide Nitric acid Ammonia Nitrogen Nitrogen dioxide Nitric acid Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Light metals Halogens Noble gases Heavy metals Light metals Halogens Noble gases Heavy metals ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metallic constituents of hard water are : Iron, tin and calcium Magnesium, tin and iron Magnesium, calcium and tin Calcium, magnesium and iron Iron, tin and calcium Magnesium, tin and iron Magnesium, calcium and tin Calcium, magnesium and iron ANSWER DOWNLOAD EXAMIANS APP
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