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