Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Double nitrate Double sulphates Hydrated chlorides Nitrates of aluminium Double nitrate Double sulphates Hydrated chlorides Nitrates of aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass is a solution of molten copper in Molten zinc Molten tin Solid zinc Gaseous zinc Molten zinc Molten tin Solid zinc Gaseous zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Alum Potassium Permangante Lime Sodium carbonate Alum Potassium Permangante Lime Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 A and b C and d B and c A and c A and b C and d B and c A and c ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following has a maximum tendency to form M3 ion ? Bi As N P Bi As N P ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of carbon in cost iron is : 0.5 to 1.5 0.01 to 0.25 6 to 8 3 to 5 0.5 to 1.5 0.01 to 0.25 6 to 8 3 to 5 ANSWER DOWNLOAD EXAMIANS APP
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