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 Coagulation Softening Disinfection Sedimentation Coagulation Softening Disinfection Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The two metal ions that cause hardness to water are: Sodium, Calcium Calcium, Magnesium Sodium, Potassium Sodium, Magnesium Sodium, Calcium Calcium, Magnesium Sodium, Potassium Sodium, Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bleaching powder is used in drinking water as a/an Antibiotic Antiseptic Disinfectant Coagulant Antibiotic Antiseptic Disinfectant Coagulant ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of removing calcium and magnesium from hard water is known as Filtration Sedimentation Water softening Flocculation Filtration Sedimentation Water softening Flocculation ANSWER DOWNLOAD EXAMIANS APP
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