Related Questions

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
Alum is commercially produced from
A Gypsum
B Feldspar
C Galena
D Bauxite
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
A stretch of sea water, partly or fully separated by a narrow strip from the main sea is called
A Bay
B Isthmus
C Lagoon
D Strait
Which of the following is not produced on commercial scale from sea water?
A Bromine
B Magnesium compounds
C Potassium compounds
D Sodium sulphate
In a new production process, the number of units produced during the first week was 450. If the efficiency gradually increase so that 10 additional units can be produced each week, how many will be produced in the 10th week?
A 490
B 700
C 540
D 640

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