Chemical Process Magnesium and calcium __________ cause temporary hardness of water. Bicarbonates Phosphates Carbonates Sulphates Bicarbonates Phosphates Carbonates Sulphates ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of Formic acid Methyl alcohol Nitric acid Hydrochloric acid Formic acid Methyl alcohol Nitric acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Ore concentration by froth floatation utilises the __________ of ore particles. Terminal velocities Density difference None of these Wetting characteristics Terminal velocities Density difference None of these Wetting characteristics ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Black liquor is converted into white liquor by Evaporation and burning the concentrate followed by causticisation of products Selective liquid extraction Extractive distillation Multi-effect evaporation only Evaporation and burning the concentrate followed by causticisation of products Selective liquid extraction Extractive distillation Multi-effect evaporation only ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is 0.14 1.4 0.34 0.94 0.14 1.4 0.34 0.94 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Wet chlorine gas produced during electrolysis of brine is dehydrated by Passing it through a bed of diatomaceous earth None of these Spraying 66° Be H₂SO₄ counter current to the flow of the gas Passing it through a bed of silica gel Passing it through a bed of diatomaceous earth None of these Spraying 66° Be H₂SO₄ counter current to the flow of the gas Passing it through a bed of silica gel ANSWER DOWNLOAD EXAMIANS APP
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