Chemical Process Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale. Iron Vanadium Alumina Nickel Iron Vanadium Alumina Nickel ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ is used as a flux in the extraction of iron from iron ore (hametite) in blast furnace. Manganese Limestone Quartz Bauxite Manganese Limestone Quartz Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The major constituent of black liquor generated during paper manufacture is sodium Bi-carbonate Hydroxide Carbonate Sulphate Bi-carbonate Hydroxide Carbonate Sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The manufacture of Kraft pulp is done by a/an __________ process. Alkaline Acidic None of these Neutral Alkaline Acidic None of these Neutral ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which allotrope of sulphur is insoluble in carbon disulphide? Milk of sulphur Monoclinic sulphur Plastic sulphur Rhombic sulphur Milk of sulphur Monoclinic sulphur Plastic sulphur Rhombic sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Viscose rayon Utilises H₂SO₄, NaOH and CS₂ during its manufacture None of these Cannot be made from sulphite pulp Cannot yield textile grade fibre Utilises H₂SO₄, NaOH and CS₂ during its manufacture None of these Cannot be made from sulphite pulp Cannot yield textile grade fibre ANSWER DOWNLOAD EXAMIANS APP
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