Chemical Process Sulphur removal by heating of pyrite ore in presence of air is called its Reduction Smelting Roasting Calcination Reduction Smelting Roasting Calcination ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Helium is produced on commercial scale from None of these Air Coke oven gas Natural gas None of these Air Coke oven gas Natural gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Impurities present in brine is normally removed by treatment with All of these NH₃ and CO₂ Lime and soda ash Lime, ammonia and carbon All of these NH₃ and CO₂ Lime and soda ash Lime, ammonia and carbon ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the exothermic reaction out of the following: MgCO₃ = MgO + CO₂ CaC₂ + H₂O = Ca(OH)₂ + C₂H₂ C + H₂O = CO + H₂ All of these MgCO₃ = MgO + CO₂ CaC₂ + H₂O = Ca(OH)₂ + C₂H₂ C + H₂O = CO + H₂ All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Thermal pyrolysis of ethylene dichloride produces Ethanol amine Ethylene oxide Trichloroethylene Vinyl chloride Ethanol amine Ethylene oxide Trichloroethylene Vinyl chloride ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Catalyst used in the oxidation of benzene to produce maleic anhydride is Pt Cr V₂O₅ Ni Pt Cr V₂O₅ Ni ANSWER DOWNLOAD EXAMIANS APP
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