Chemistry Which method will be employed to test the hardness of water? Formation of lather with soap None of these Boiling Distillation Formation of lather with soap None of these Boiling Distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Phosphorus-31 Carbon-14 Tritium Radium Phosphorus-31 Carbon-14 Tritium Radium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Of the following, which one pollutes the air of a big city ? Chromium Cadmium Lead Copper Chromium Cadmium Lead Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Electric bulbs are filled with : Nitrogen Carbon dioxide Oxygen Argon Nitrogen Carbon dioxide Oxygen Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to NO2 SO3 SO2 N2O NO2 SO3 SO2 N2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is found in kidney stones? Sodium oxalate Calcium acetate Calcium oxalate Sodium chloride Sodium oxalate Calcium acetate Calcium oxalate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
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