Chemistry The chemical formula of the laughing gas is N2O3 N2O NO NO2 N2O3 N2O NO NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is boiling adding caustic soda distillation adding sodium carbonate boiling adding caustic soda distillation adding sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Of the following compounds of calcium, the one having highest covalent character is CaF2 Cal2 Cacl2 CaBr2 CaF2 Cal2 Cacl2 CaBr2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gypsum is used for improvement of: Alkaline soils Podsols Saline soils Acidic soils Alkaline soils Podsols Saline soils Acidic soils ANSWER DOWNLOAD EXAMIANS APP
Chemistry In deep-sea diving, divers use a mixture of gases consisting of oxygen and Helium Argon Hydrogen Nitrogen Helium Argon Hydrogen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following metals provides amphoteric oxide ? Aluminium Silver Sodium Calcium Aluminium Silver Sodium Calcium ANSWER DOWNLOAD EXAMIANS APP
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