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 Parathion and Malathion are Tranquilisers Pain-relieving drugs (analgesic) Pesticides Plasticisers for unsaturated polysters Tranquilisers Pain-relieving drugs (analgesic) Pesticides Plasticisers for unsaturated polysters ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Function of sodium thiosulphate (hypo) in development of photographic film/plate is to Convert silver chloride to silver Remove unexposed silver halide Remove metallic silver Brighten the faint images Convert silver chloride to silver Remove unexposed silver halide Remove metallic silver Brighten the faint images ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is not a raw material used for the manufacture of ordinary glass? Limestone Silica Iron oxide Soda ash Limestone Silica Iron oxide Soda ash ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to Remove lignin by way of crystallisation None of these Avoid mechanical weakening of fibre Increase the cellulose content Remove lignin by way of crystallisation None of these Avoid mechanical weakening of fibre Increase the cellulose content ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the wrong statement pertaining to solvent extraction of oil.Rate of extraction Decreases as the moisture content of flakes increases Increases Considerably with the rise of temperature Increases with the increasing flake size keeping the flake thickness constant Decreases with decrease of thickness of the flakes Decreases as the moisture content of flakes increases Increases Considerably with the rise of temperature Increases with the increasing flake size keeping the flake thickness constant Decreases with decrease of thickness of the flakes ANSWER DOWNLOAD EXAMIANS APP
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