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