Chemistry The purest form of water in nature is Lake water Rain water River water Sea water Lake water Rain water River water Sea 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, 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 Antiseptic Antibiotic Coagulant Disinfectant Antiseptic Antibiotic Coagulant 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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