Chemistry The purest form of water in nature is Rain water River water Sea water Lake water Rain water River water Sea water Lake 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, Potassium Calcium, Magnesium Sodium, Calcium Sodium, Magnesium Sodium, Potassium Calcium, Magnesium Sodium, Calcium 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 Filtration Water softening Flocculation Sedimentation Filtration Water softening ANSWER DOWNLOAD EXAMIANS APP
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