Chemical Process Which of the following is an ore of iron? Galena Hematite Bauxite Chalcopyrite Galena Hematite Bauxite Chalcopyrite ANSWER DOWNLOAD EXAMIANS APP
Chemical Process High purity nitrogen is used in Making protective gas (95% N₂ + 5% H₂) for annealing of cold rolled steel strip coils Both A & B Fire fighting purposes Neither A nor B Making protective gas (95% N₂ + 5% H₂) for annealing of cold rolled steel strip coils Both A & B Fire fighting purposes Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Lime and soda ash are added to water to remove Bicarbonates & sulphates of calcium and magnesium Its corrosiveness Undersirable taste and odour Bacteria Bicarbonates & sulphates of calcium and magnesium Its corrosiveness Undersirable taste and odour Bacteria ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Nickel is not used as a catalyst in the Fischer-Tropsch process Hydrogenation of oil Shift conversion Ostwald's process of HNO₃ manufacture Fischer-Tropsch process Hydrogenation of oil Shift conversion Ostwald's process of HNO₃ manufacture ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The major use of butadiene is In the manufacture of synthetic rubber None of these As a plasticiser for unsaturated polyester As an anti-skinning agent in paint In the manufacture of synthetic rubber None of these As a plasticiser for unsaturated polyester As an anti-skinning agent in paint ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Black liquor is converted into white liquor by Multi-effect evaporation only Extractive distillation Selective liquid extraction Evaporation and burning the concentrate followed by causticisation of products Multi-effect evaporation only Extractive distillation Selective liquid extraction Evaporation and burning the concentrate followed by causticisation of products ANSWER DOWNLOAD EXAMIANS APP
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