Chemistry The percentage of oxygen in air is approximately 0.78 0.21 0.01 1 0.78 0.21 0.01 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass is a solution of molten copper in Solid zinc Molten tin Gaseous zinc Molten zinc Solid zinc Molten tin Gaseous zinc Molten zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Global warming is mainly due to accumulation of Oxides of nitrogen Carbon dioxide Carbon monoxide Oxides of sulphur Oxides of nitrogen Carbon dioxide Carbon monoxide Oxides of sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is adding caustic soda distillation adding sodium carbonate boiling adding caustic soda distillation adding sodium carbonate boiling ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following appeared to be with a significant potential for accumulation through food chains ? Lindane Carbary Parathion DDT Lindane Carbary Parathion DDT ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is found in kidney stones? Calcium oxalate Calcium acetate Sodium oxalate Sodium chloride Calcium oxalate Calcium acetate Sodium oxalate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
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