Chemical Process Pick out the false statement pertaining to water treatment. Sodium sulphate or sodium carbonate do not cause hardness in water Aeration of water is effective in CO₂ removal Water with pH value less than 7, is acidic The zeolite water softening process reduces the hardness of water by not more than 50% Sodium sulphate or sodium carbonate do not cause hardness in water Aeration of water is effective in CO₂ removal Water with pH value less than 7, is acidic The zeolite water softening process reduces the hardness of water by not more than 50% ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is not produced commercially from sea water? Common salt Bromine Magnesium & potassium compounds Iodine Common salt Bromine Magnesium & potassium compounds Iodine ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Ca(OH)₂ is called Gypsum Slaked lime Limestone Quicklime Gypsum Slaked lime Limestone Quicklime ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Styrene (a monomer for the production of polystyrene) is commercially produced by Reacting ethylene oxide with acetal-dehyde Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation Catalytic dehydrogenation of ethyl benzene Reacting ethylene oxide with acetal-dehyde Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation Catalytic dehydrogenation of ethyl benzene ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Sulphur removal by heating of pyrite ore in presence of air is called its Roasting Calcination Smelting Reduction Roasting Calcination Smelting Reduction ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Iron ore hametite is concentrated using Froth floatation Gravity separation Electro magnetic separation mainly Roasting Froth floatation Gravity separation Electro magnetic separation mainly Roasting ANSWER DOWNLOAD EXAMIANS APP
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