Chemical Process Styrene (a monomer for the production of polystyrene) is commercially produced by Catalytic dehydrogenation of ethyl benzene Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation Reacting ethylene oxide with acetal-dehyde Catalytic dehydrogenation of ethyl benzene Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation Reacting ethylene oxide with acetal-dehyde ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following has sodium bicarbonate as its main constituent ? Washing soda None of these Baking soda Baking powder Washing soda None of these Baking soda Baking powder ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Sulphur removal by heating of pyrite ore in presence of air is called its Smelting Reduction Calcination Roasting Smelting Reduction Calcination Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Main constituent of limestone is CaCO₃ MgCO₃ Na₂CO₃ CaSO₄ CaCO₃ MgCO₃ Na₂CO₃ CaSO₄ ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The ideal pulp for the manufacture of paper should have high __________ content. None of these Cellulose Both A & B Lignin None of these Cellulose Both A & B Lignin ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Viscose rayon Utilises H₂SO₄, NaOH and CS₂ during its manufacture Cannot yield textile grade fibre None of these Cannot be made from sulphite pulp Utilises H₂SO₄, NaOH and CS₂ during its manufacture Cannot yield textile grade fibre None of these Cannot be made from sulphite pulp ANSWER DOWNLOAD EXAMIANS APP
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