Chemical Process Styrene (a monomer for the production of polystyrene) is commercially produced by Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation Catalytic dehydrogenation of ethyl benzene Reacting ethylene oxide with acetal-dehyde Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation Catalytic dehydrogenation of ethyl benzene Reacting ethylene oxide with acetal-dehyde ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Fusel oil is a/an None of these Essential oil Mixture of higher molecular weight alcohols (a by-product obtained during production of alcohol from molasses) Extract from medicinal herbs None of these Essential oil Mixture of higher molecular weight alcohols (a by-product obtained during production of alcohol from molasses) Extract from medicinal herbs ANSWER DOWNLOAD EXAMIANS APP
Chemical Process High temperature carbonisation of coal takes place at __________ °C. 1100 < 500 700 2000 1100 < 500 700 2000 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction? Reduction of Na+ ions Oxidation of Na+ ions Reduction of Cl- ions Oxidation of Cl- ions Reduction of Na+ ions Oxidation of Na+ ions Reduction of Cl- ions Oxidation of Cl- ions ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the true statement pertaining to water treatment. Slow sand filters can remove colour completely Application of activated carbon reduces the temporary hardness of water Normally, the turbidity is removed by adding a coagulent prior to sedimentation Activated carbon can be used for taste & odour control without subsequent filtration Slow sand filters can remove colour completely Application of activated carbon reduces the temporary hardness of water Normally, the turbidity is removed by adding a coagulent prior to sedimentation Activated carbon can be used for taste & odour control without subsequent filtration ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Most commonly used rubber vulcanising agent is Alumina Platinum Sulphur Bromine Alumina Platinum Sulphur Bromine ANSWER DOWNLOAD EXAMIANS APP
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