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