Chemistry Iron and manganese present as pollutants in water cannot be removed by________ Chlorination Oxidation followed by settling and filtration Ion exchange process Lime soda process or manganese zeolite process Chlorination Oxidation followed by settling and filtration Ion exchange process Lime soda process or manganese zeolite process ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements exhibits the greatest tendency to lose electrons ? Zinc Oxygen Lithium Fluorine Zinc Oxygen Lithium Fluorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as preservative for foodstuff ? Sodium Benzoate Glycerine Sodium Chloride Picric acid Sodium Benzoate Glycerine Sodium Chloride Picric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The sewage obtained from water closets and urinals is known as Garbage Sanitary waste Industrial waste Sullage Garbage Sanitary waste Industrial waste Sullage ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecule which has the highest percentage of ionic character among the following is HBr HCI HF HI HBr HCI HF HI ANSWER DOWNLOAD EXAMIANS APP
Chemistry Burning pyrites ore gives out Sulphur dioxide gas Carbon dioxide gas Nitrogen dioxide gas Nitric oxide gas Sulphur dioxide gas Carbon dioxide gas Nitrogen dioxide gas Nitric oxide gas ANSWER DOWNLOAD EXAMIANS APP
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