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
Chemistry A substance which readily forms colloidal solution in contact with water is called Extrinsic colloid Associated colloid Hydrophobic colloid Hydrophilic colloid Extrinsic colloid Associated colloid Hydrophobic colloid Hydrophilic colloid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas does not form the part of atmosphere ? Nitrogen Helium None of these Chlorine Nitrogen Helium None of these Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of copper in drinking water in mg/L is 0.01 0.05 2 1 0.01 0.05 2 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium phosphate Calcium borate Calcium sulphate Calcium chloride Calcium phosphate Calcium borate Calcium sulphate Calcium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of Iron is : Cast iron Pig iron Steel Wrought iron Cast iron Pig iron Steel Wrought iron ANSWER DOWNLOAD EXAMIANS APP
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