Chemistry Forth floatation process to concentrate the minerals is applicable to Bauxite Chalcopyrites Haematite Calamine Bauxite Chalcopyrites Haematite Calamine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is helium ozone methane oxygen helium ozone methane oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aquaregia is a mixture of the following in the ratio 1 : 3 by volume 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 Dil. HCl and dil. HNO3 Conc. HNO3 and conc. H2SO4 Conc. HNO3 and conc. HCl ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of natural gas is Butane Ethane Propane Methane Butane Ethane Propane Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is found in kidney stones? Calcium oxalate Sodium oxalate Sodium chloride Calcium acetate Calcium oxalate Sodium oxalate Sodium chloride Calcium acetate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The rusting of iron is a/an Electrical change None of these Physical change Electrochemical change Electrical change None of these Physical change Electrochemical change ANSWER DOWNLOAD EXAMIANS APP
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