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