Chemical Process Flux addition during smelting of ore is done to Separate slag from metal Remove impurities/gangue Accelerate reduction of ore Enhance rate of reaction Separate slag from metal Remove impurities/gangue Accelerate reduction of ore Enhance rate of reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by None of these Electrolysis Electrolytic reduction Electrolytic oxidation None of these Electrolysis Electrolytic reduction Electrolytic oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The temperature in the calcium carbide furnace is __________ °C. 4000-4500 200-300 2000-2200 700-850 4000-4500 200-300 2000-2200 700-850 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its All of these Poor oxidation stability and high gum forming tendency Hydrolysis tendency in presence of water Greater tendency of decomposition at elevated temperature All of these Poor oxidation stability and high gum forming tendency Hydrolysis tendency in presence of water Greater tendency of decomposition at elevated temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Process CaO is called Calcite Slaked lime Quick lime Limestone Calcite Slaked lime Quick lime Limestone ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the endothermic reaction out of the following. CO + 3H₂ = CH₄ + H₂O C+1/2O₂ = CO CO +1/2O₂ = CO₂ CaCO₃ = CaO + CO₂ CO + 3H₂ = CH₄ + H₂O C+1/2O₂ = CO CO +1/2O₂ = CO₂ CaCO₃ = CaO + CO₂ ANSWER DOWNLOAD EXAMIANS APP
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