Chemical Process Styrene (a monomer for the production of polystyrene) is commercially produced by 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 Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation Catalytic dehydrogenation of ethyl benzene ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is 0.14 1.4 0.34 0.94 0.14 1.4 0.34 0.94 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Fermentation is adversely affected by the Absence of air Presence of ammonium salts High concentration Presence of air Absence of air Presence of ammonium salts High concentration Presence of air ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Mercury cells for caustic soda manufacture, compared to diaphragm cells Require lower initial investment None of these Require more power Produce lower concentration NaOH Require lower initial investment None of these Require more power Produce lower concentration NaOH ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Synthetic glycerine is produced from Phenol Naphthalene Toluene Propylene Phenol Naphthalene Toluene Propylene ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is All of these A slow reaction Still in development stage (by employing fluidised bed technique) A discontinuous reaction (requiring regeneration of iron by water gas intermittently) All of these A slow reaction Still in development stage (by employing fluidised bed technique) A discontinuous reaction (requiring regeneration of iron by water gas intermittently) ANSWER DOWNLOAD EXAMIANS APP
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