Chemical Process Concentration of sulphide ores is done usually by Electro magnetic separation Roasting Smelting Froth floatation Electro magnetic separation Roasting Smelting Froth floatation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Trinitro-toluene (TNT) is An explosive None of these Used in glycerine manufacture Used in dye manufacture An explosive None of these Used in glycerine manufacture Used in dye manufacture ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is the second major component of cement? SiO₂ Fe₂O₃ CaO Al₂O₃ SiO₂ Fe₂O₃ CaO Al₂O₃ ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is Dilute H₂SO₄ Oleum None of these Ultraviolet light Dilute H₂SO₄ Oleum None of these Ultraviolet light ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of Magnesium chloride Sodium sulphate Calcium sulphate Sodium chloride Magnesium chloride Sodium sulphate Calcium sulphate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Catalyst used in the oxidation of benzene to produce maleic anhydride is V₂O₅ Pt Cr Ni V₂O₅ Pt Cr Ni ANSWER DOWNLOAD EXAMIANS APP
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