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