Chemical Process Which of the following is an ore of iron? Hematite Bauxite Chalcopyrite Galena Hematite Bauxite Chalcopyrite Galena ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Concentration of sulphide ores is done usually by Froth floatation Smelting Electro magnetic separation Roasting Froth floatation Smelting Electro magnetic separation Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Most widely and commonly used coagulant for the removal of suspended impurities in water is Bleaching powder Alum Copper sulphate Slaked lime Bleaching powder Alum Copper sulphate Slaked lime ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The end bleaching agent used to move last traces of colour bodies from the pulp is MgO Mercaptans SO₂ gas Chlorine dioxide (ClO₂) MgO Mercaptans SO₂ gas Chlorine dioxide (ClO₂) ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Chrome tanning and vegetable tanning are done for Light & heavy leather respectively Heavy & light leather respectively Neither light nor heavy leather Both light & heavy leather Light & heavy leather respectively Heavy & light leather respectively Neither light nor heavy leather Both light & heavy leather ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by Electrolysis Electrolytic oxidation None of these Electrolytic reduction Electrolysis Electrolytic oxidation None of these Electrolytic reduction ANSWER DOWNLOAD EXAMIANS APP
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