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