Chemical Process Presence of carbonaceous matter in the sewage Reduces sulphate ions to sulphides causing obnoxious smell All of these Increases the quantity of chlorine used for its purification Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures Reduces sulphate ions to sulphides causing obnoxious smell All of these Increases the quantity of chlorine used for its purification Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Presence of sodium tripolyphosphate (an additive) in synthetic detergent None of these Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions) Does not allow redeposition of dirt on the cleaned surface Inhibits its corrosive effects None of these Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions) Does not allow redeposition of dirt on the cleaned surface Inhibits its corrosive effects ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The biochemical treatment applied to sewage effluents is a process of Dehydration Reduction Oxidation Polymerisation Dehydration Reduction Oxidation Polymerisation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to 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 Increase its viscosity Reduce the variation in its viscosity with temperature Reduce its viscosity ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The terminology 'BTX' used in coal tar distillation industry refers to Benzene-toluol-xylol Benzol-toluol-xylol Benzene-toluene-xylene Benzol-toluene-xylene Benzene-toluol-xylol Benzol-toluol-xylol Benzene-toluene-xylene Benzol-toluene-xylene ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Chloral is used in the manufacture of BHC Parathion DDT None of these BHC Parathion DDT None of these ANSWER DOWNLOAD EXAMIANS APP
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