Chemical Process Sulphur removal by heating of pyrite ore in presence of air is called its Roasting Reduction Smelting Calcination Roasting Reduction Smelting Calcination ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Plasticisers are added to paints to Make it corrosion resistant Give elasticity & prevent cracking of the film Make glossy surface Increase atmospheric oxidation Make it corrosion resistant Give elasticity & prevent cracking of the film Make glossy surface Increase atmospheric oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the wrong statement pertaining to nitric acid. Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO₂) It is a strong mono basic acid which reacts with almost all the metals except noble metals About 90% of nitric acid is manufactured by Ostwald Arc process of nitric acid manufacture is economical as compared to Ostwald Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO₂) It is a strong mono basic acid which reacts with almost all the metals except noble metals About 90% of nitric acid is manufactured by Ostwald Arc process of nitric acid manufacture is economical as compared to Ostwald ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Common salt is generally not produced commonly by __________ method from brine. Freeze drying Vacuum evaporation Solar evaporation Electrolytic Freeze drying Vacuum evaporation Solar evaporation Electrolytic ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Blue vitriol is chemically Copper sulphate Aluminium sulphate Ferrous sulphate Copper nitrate Copper sulphate Aluminium sulphate Ferrous sulphate Copper nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the wrong statement pertaining to solvent extraction of oil.Rate of extraction Increases Considerably with the rise of temperature Decreases as the moisture content of flakes increases Increases with the increasing flake size keeping the flake thickness constant Decreases with decrease of thickness of the flakes Increases Considerably with the rise of temperature Decreases as the moisture content of flakes increases Increases with the increasing flake size keeping the flake thickness constant Decreases with decrease of thickness of the flakes ANSWER DOWNLOAD EXAMIANS APP
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