Chemical Process The most commonly used substance to speed up the sedimentation of sewage is Sulphuric acid Sodium bisulphite Lime Chlorine Sulphuric acid Sodium bisulphite Lime Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Alcohol is produced by the Oxidation of an aldehyde Esterification of a fat Hydrolysis of an ether None of these Oxidation of an aldehyde Esterification of a fat Hydrolysis of an ether None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Glycerine can be obtained from Sucrose Cumene Naphthalene Fat Sucrose Cumene Naphthalene Fat ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the wrong statement pertaining to nitric acid. Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO₂) About 90% of nitric acid is manufactured by Ostwald Arc process of nitric acid manufacture is economical as compared to Ostwald It is a strong mono basic acid which reacts with almost all the metals except noble metals Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO₂) About 90% of nitric acid is manufactured by Ostwald Arc process of nitric acid manufacture is economical as compared to Ostwald It is a strong mono basic acid which reacts with almost all the metals except noble metals ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Use of hydrated lime in water treatment Before filtration, reduces the bacterial load on filters After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂ Is to adjust the pH value All of these Before filtration, reduces the bacterial load on filters After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂ Is to adjust the pH value All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Use of chlorine in the treatment of sewage Increases the biological oxygen demand(BOD) Aids in flocculation Helps in grease separation Causes bulking of activated sludge Increases the biological oxygen demand(BOD) Aids in flocculation Helps in grease separation Causes bulking of activated sludge ANSWER DOWNLOAD EXAMIANS APP
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