Related Questions

Which of the following is not produced commercially from sea water?
A Magnesium & potassium compounds
B Common salt
C Bromine
D Iodine
Petroleum coke is commercially produced by the __________ process.
A Hydrocracking
B Visbreaking
C Fluid catalytic cracking
D Delayed coking
Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on
A Slaked lime
B Soda lime
C Calcium perchlorate
D None of these
Styrene (a monomer for the production of polystyrene) is commercially produced by
A Catalytic dehydrogenation of ethyl benzene
B Dehydration of ethyl alcohol followed by hydrogenation
C Reacting ethylene oxide with acetal-dehyde
D Fermentation of starch
Commercially ethylene is produced from naphtha by
A Catalytic cracking
B Catalytic dehydrogenation
C Pyrolysis
D Hydrocracking
Hydrogen gas is not produced commercially (for nitrogeneous fertiliser manufacture) by
A Iron-steam reaction
B Electrolysis of water
C Steam reforming of naphtha
D Its cryogenic separation from coke oven gas
Styrene which is a monomer for the production of polystyrene, is commercially produced by the
A Catalytic dehydrogenation of ethyl benzene
B Dehydration of ethyl alcohol followed by hydrogenation
C Reacting ethylene oxide with acetal-dehyde
D Fermentation of starch
Singular of alum' is-
A alumni
B alumny
C alumnus
D alumnas
The alum, when added as a coagulant in water
A Does not require alkalinity in water for flocculation
B Does not affect pH value of water
C Increases pH value of water
D Decreases pH value of water
Starting raw material for the manufacture of alum is
A Alumina
B Gypsum
C Bauxite
D Ammonium bicarbonate

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