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