Chemical Process Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C. 90-100 250-300 15-30 90-100 250-300 15-30 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia. Haber's None of these Solvay Ostwald's Haber's None of these Solvay Ostwald's ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The end bleaching agent used to move last traces of colour bodies from the pulp is SO₂ gas MgO Chlorine dioxide (ClO₂) Mercaptans SO₂ gas MgO Chlorine dioxide (ClO₂) Mercaptans ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is used as a coagulant in water treatment? Chloramine Hydrogen peroxide Ferrous sulphate Chlorine Chloramine Hydrogen peroxide Ferrous sulphate Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Esterification reaction All of these Is reversible Is a reaction between an alcohol and an organic acid Produces soap All of these Is reversible Is a reaction between an alcohol and an organic acid Produces soap ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Fluorescent dyes are added in detergents to Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics None of these Act as tarnish inhibitor for metals like German silver Attain distinctiveness from other brands Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics None of these Act as tarnish inhibitor for metals like German silver Attain distinctiveness from other brands ANSWER DOWNLOAD EXAMIANS APP
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