Chemical Process Use of hydrated lime in water treatment Is to adjust the pH value After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂ All of these Before filtration, reduces the bacterial load on filters Is to adjust the pH value After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂ All of these Before filtration, reduces the bacterial load on filters ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Dehydrogenation of ethyl benzene produces Naphthalene Phenol Styrene Benzoic acid Naphthalene Phenol Styrene Benzoic acid ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils Always contain some amount of nickel (as their complete removal is very difficult) Are prone to rancid oxidation Cause cholesterol build up and blood clotting Have affinity to retain harmful sulphur compounds Always contain some amount of nickel (as their complete removal is very difficult) Are prone to rancid oxidation Cause cholesterol build up and blood clotting Have affinity to retain harmful sulphur compounds ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Plasticisers are added to paints to Increase atmospheric oxidation Make glossy surface Give elasticity & prevent cracking of the film Make it corrosion resistant Increase atmospheric oxidation Make glossy surface Give elasticity & prevent cracking of the film Make it corrosion resistant ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Temporary hardness of water can be removed by Boiling Addition of lime Addition of alum (a coagulant) Filtration (through gravity sand filter) Boiling Addition of lime Addition of alum (a coagulant) Filtration (through gravity sand filter) ANSWER DOWNLOAD EXAMIANS APP
Chemical Process CO & H₂ are the constituents of All of these Producer gas Coke oven gas Water gas All of these Producer gas Coke oven gas Water gas ANSWER DOWNLOAD EXAMIANS APP
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