Chemical Process Catalytic oxidation of naphthalene produces Phthalic anhydride Phenol Styrene None of these Phthalic anhydride Phenol Styrene None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process DDT should not be allowed to come in contact with iron (during its manufacture) to None of these Achieve non-hygroscopic property Prevent sulphonation of the monochlorobenzene by the acid catalyst Avoid its decomposition None of these Achieve non-hygroscopic property Prevent sulphonation of the monochlorobenzene by the acid catalyst Avoid its decomposition ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Ore concentration by froth floatation utilises the __________ of ore particles. Terminal velocities Density difference Wetting characteristics None of these Terminal velocities Density difference Wetting characteristics None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Shrinkage volume in cement setting does not depend upon the Ambient temperature fluctuation Sand to cement ratio Water to cement ratio Drying period Ambient temperature fluctuation Sand to cement ratio Water to cement ratio Drying period ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Addition of calcium oxide to water produces Exothermic heat Hissing sound All of these Slaked lime Exothermic heat Hissing sound All of these Slaked lime ANSWER DOWNLOAD EXAMIANS APP
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 Before filtration, reduces the bacterial load on filters All of these Is to adjust the pH value After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂ Before filtration, reduces the bacterial load on filters All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS