Chemistry The metallic constituents of hard water are : Magnesium, tin and iron Iron, tin and calcium Calcium, magnesium and iron Magnesium, calcium and tin Magnesium, tin and iron Iron, tin and calcium Calcium, magnesium and iron Magnesium, calcium and tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Removal of carbon particles from air involves the principle of Filteration Precipitation Sedimentation Electrophoresis Filteration Precipitation Sedimentation Electrophoresis ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of biogas is Oxygen Methane Methyl alcohol Acetic acid Oxygen Methane Methyl alcohol Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The term 'brown air' is used for Photochemical smog Sulphurous smog Industrial smog Acid fumes Photochemical smog Sulphurous smog Industrial smog Acid fumes ANSWER DOWNLOAD EXAMIANS APP
Chemistry Philosopher’s Wool is Zinc blende Zinc carbonate Zinc oxide Zinc sulphate Zinc blende Zinc carbonate Zinc oxide Zinc sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium chloride Calcium borate Calcium sulphate Calcium phosphate Calcium chloride Calcium borate Calcium sulphate Calcium phosphate ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS