Chemical Process Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of Calcium sulphate Magnesium chloride Sodium sulphate Sodium chloride Calcium sulphate Magnesium chloride Sodium sulphate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Most widely and commonly used coagulant for the removal of suspended impurities in water is Copper sulphate Slaked lime Bleaching powder Alum Copper sulphate Slaked lime Bleaching powder Alum ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to Increase its viscosity Reduce the variation in its viscosity with temperature Reduce its viscosity Increase the variation in its viscosity with temperature Increase its viscosity Reduce the variation in its viscosity with temperature Reduce its viscosity Increase the variation in its viscosity with temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Process In Kraft process of paper manufacture, white cooking liquor consists of caustic soda Sodium sulphite & sodium carbonate Sodium sulphide & sodium carbonate Sodium sulphite & sodium sulphide None of these Sodium sulphite & sodium carbonate Sodium sulphide & sodium carbonate Sodium sulphite & sodium sulphide None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Use of hydrated lime in water treatment Is to adjust the pH value Before filtration, reduces the bacterial load on filters All of these After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂ Is to adjust the pH value Before filtration, reduces the bacterial load on filters All of these After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Process An oil is converted into fat by its Hydrolysis Hydrocracking Hydrogenation Hydration Hydrolysis Hydrocracking Hydrogenation Hydration ANSWER DOWNLOAD EXAMIANS APP
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