Chemical Process Manufacture of phthalic anhydride uses __________ as a catalyst. Cr Al₂O₃ Ni V₂O₅ Cr Al₂O₃ Ni V₂O₅ ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ is used as a flux in the extraction of iron from iron ore (hametite) in blast furnace. Manganese Quartz Limestone Bauxite Manganese Quartz Limestone Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ is not a constituent of gun powder. Charcoal Carbon Sulphur Potassium nitrate Charcoal Carbon Sulphur Potassium nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Impurities present in brine is normally removed by treatment with All of these Lime and soda ash NH₃ and CO₂ Lime, ammonia and carbon All of these Lime and soda ash NH₃ and CO₂ Lime, ammonia and carbon ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Linde process of gas liquefaction employs Adiabatic expansion against a piston or in a turbine Merely compressing the gas beyond its critical pressure Exchange of heat with colder stream Adiabatic expansion through a throttle valve (Joule-Thomson expansion) Adiabatic expansion against a piston or in a turbine Merely compressing the gas beyond its critical pressure Exchange of heat with colder stream Adiabatic expansion through a throttle valve (Joule-Thomson expansion) ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Concentration of hydrogen peroxide is done by Atmospheric distillation Dehydration Crystallisation Vacuum crystallisation Atmospheric distillation Dehydration Crystallisation Vacuum crystallisation ANSWER DOWNLOAD EXAMIANS APP
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