Chemistry Hardness of the water is commonly measured in terms of Calcium sulphate equivalents Magnesium sulphate equivalents Magnesium carbonate equivalents Calcium carbonate equivalents Calcium sulphate equivalents Magnesium sulphate equivalents Magnesium carbonate equivalents Calcium carbonate equivalents ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of copper in drinking water in mg/L is 2 1 0.05 0.01 2 1 0.05 0.01 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The amount of chlorine available in water after disinfection is called as Combined available chlorine Free chlorine Free available chlorine Residual chlorine Combined available chlorine Free chlorine Free available chlorine Residual chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of total hardness in drinking water is 100 50 200 500 100 50 200 500 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is extensively used for sterilizing water ? Bleaching powder Soda powder Borax powder Alum Bleaching powder Soda powder Borax powder Alum ANSWER DOWNLOAD EXAMIANS APP
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