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 Sodium chloride Magnesium chloride Sodium sulphate Calcium sulphate Sodium chloride Magnesium chloride Sodium sulphate Calcium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Bio-degradable detergents Can be readily oxidised Pose problem in sewerage plant Have an isoparaffinic structure Should not be used as it spoils the cloth Can be readily oxidised Pose problem in sewerage plant Have an isoparaffinic structure Should not be used as it spoils the cloth ANSWER DOWNLOAD EXAMIANS APP
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 Graphite is a/an Moderator used in nuclear reactor Allotrope of carbon Electrical insulator Both B and C Moderator used in nuclear reactor Allotrope of carbon Electrical insulator Both B and C ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Transparent soaps (e.g. Pears) are Metallic soaps with frothing agent from which glycerine has not been recovered Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency None of these Metallic soaps with frothing agent and free stearic acid to achieve transparency Metallic soaps with frothing agent from which glycerine has not been recovered Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency None of these Metallic soaps with frothing agent and free stearic acid to achieve transparency ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Sodium bisulphite is used for __________ water. Both A & B Dechlorination Neither A nor B Deaeration Both A & B Dechlorination Neither A nor B Deaeration ANSWER DOWNLOAD EXAMIANS APP
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