Chemistry The purest form of water in nature is Sea water Rain water River water Lake water Sea water Rain water River water Lake water ANSWER DOWNLOAD EXAMIANS APP
Chemistry In drinking water supply, which of the following treatments is not involved Sedimentation Disinfection Softening Coagulation Sedimentation Disinfection Softening Coagulation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The two metal ions that cause hardness to water are: Sodium, Magnesium Sodium, Calcium Sodium, Potassium Calcium, Magnesium Sodium, Magnesium Sodium, Calcium Sodium, Potassium Calcium, Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bleaching powder is used in drinking water as a/an Disinfectant Antibiotic Coagulant Antiseptic Disinfectant Antibiotic Coagulant Antiseptic ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of removing calcium and magnesium from hard water is known as Sedimentation Water softening Filtration Flocculation Sedimentation Water softening Filtration Flocculation ANSWER DOWNLOAD EXAMIANS APP