Chemistry The method that cannot be used for removing permanent hardness of water is boiling distillation adding sodium carbonate adding caustic soda boiling distillation adding sodium carbonate adding caustic soda ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aquaregia is a mixture of the following in the ratio 1 : 3 by volume Dil. HCl and dil. HNO3 Conc. HNO3 and conc. H2SO4 Conc. HNO3 and conc. HCl Conc. HCl and conc. HNO3 Dil. HCl and dil. HNO3 Conc. HNO3 and conc. H2SO4 Conc. HNO3 and conc. HCl Conc. HCl and conc. HNO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sea weeds are important source of Chlorine Bromine Iron Iodine Chlorine Bromine Iron Iodine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is least likely to be found in commercial fertilisers? Nitrogen Potassium Silicon Phosphorous Nitrogen Potassium Silicon Phosphorous ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has High nuclear charge Stable half filled 2p sub level Smaller atomic radius High bond dissociation energy High nuclear charge Stable half filled 2p sub level Smaller atomic radius High bond dissociation energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Forth floatation process to concentrate the minerals is applicable to Chalcopyrites Calamine Haematite Bauxite Chalcopyrites Calamine Haematite Bauxite ANSWER DOWNLOAD EXAMIANS APP
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