Chemical Process Styrene (a monomer for the production of polystyrene) is commercially produced by 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 Catalytic dehydrogenation of ethyl benzene Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Polyvinyl chloride (PVC) is None of these Made by employing emulsion polymerisation A condensation polymerisation product A thermosetting material None of these Made by employing emulsion polymerisation A condensation polymerisation product A thermosetting material ANSWER DOWNLOAD EXAMIANS APP
Chemical Process In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed : Furnace → converter → absorber Furnace → evaporator → absorber Furnace → converter → evaporator Converter → furnace → absorber Furnace → converter → absorber Furnace → evaporator → absorber Furnace → converter → evaporator Converter → furnace → absorber ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pure rectified spirit contains about __________ percent alcohol. 70 95 45 99.5 70 95 45 99.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the true statement pertaining to water treatment. Normally, the turbidity is removed by adding a coagulent prior to sedimentation Slow sand filters can remove colour completely Application of activated carbon reduces the temporary hardness of water Activated carbon can be used for taste & odour control without subsequent filtration Normally, the turbidity is removed by adding a coagulent prior to sedimentation Slow sand filters can remove colour completely Application of activated carbon reduces the temporary hardness of water Activated carbon can be used for taste & odour control without subsequent filtration ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Reaction of calcium carbide with water produces a gas, which is used As an illuminant Neither A nor B Both A & B For metal cutting/welding As an illuminant Neither A nor B Both A & B For metal cutting/welding ANSWER DOWNLOAD EXAMIANS APP
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