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