Producer gas consists mainly of
CO, CO2 N2, H2
CO, H2
H2, CH4
C2H2, CO2, H2
Correct Answer :
A. CO, CO2 N2, H2
Related Questions
The drug used in contraceptives is
Sulfadiazine
Mestranol
Methyl salicylate
Penicillin
Main constituents of natural rubber is
Polystyrene
Polyisoprene
Polybutadiene
Polychlorophrene
Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is
A slow reaction
A discontinuous reaction (requiring regeneration of iron by water gas intermittently)
Still in development stage (by employing fluidised bed technique)
All (A), (B) and (C)
Glass is
Mainly CaO
Subjected to galvanising
A super cooled liquid
All (A), (B) and (C)
Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?
AgO
Al2O3
ZnCl2
Fe2O3
Low temperature carbonisation of coal takes place at __________ °C.
300
1100
700
900
The basic difference between vegetable oils and fats is in their
Density
Chemical properties
Physical state
Composition
At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.
Independent of
Directly proportional to
Inversely proportional to
Proportional to the square of
Phenol formaldehyde resin is used as an adhesive in making
Laminates
Card boxes
Furniture
Books
Which of the following is a disaccharide?
Sucrose
Glucose
Starch
Maltose
Major component of flint glass is
Lead oxide
Silica
Alumina
Soda
Catalyst used in the hydrogenation of oil is
Nickel
Platinum
Iron
Alumina
Zeolite used in water softening process (cation exchange) is regenerated by washing with
Brine
Chloramines
Sodium bisulphite
Liquid chlorines
Aryl benzene sulphonate (ABS) is a
Detergent
Plasticiser for unsaturated polyester
Starting material for the synthesis of glycerine
Coating ingredient for photographic film
Chemical formula of oleum is
H2SO3
H2SO4
H2S2O7
H2SO7
The ideal pulp for the manufacture of paper should have high __________ content.
Cellulose
Lignin
Both (A) & (B)
None of these
Styrene (a monomer for the production of polystyrene) is commercially produced by
Catalytic dehydrogenation of ethyl benzene
Dehydration of ethyl alcohol followed by hydrogenation
Reacting ethylene oxide with acetaldehyde
Fermentation of starch
Which of the following is not an insecticide?
Hydrocyanic acid
Nicotine
Sodium fluoride
Hexane
Catalyst used in the oxidation of benzene to produce Maleic anhydride is
V2O5
Pt
Ni
Cr
Penicillin is made employing __________ fermentation process.
Continuous
Aerobic batch
Anaerobic batch
None of these
The main product of high temperature carbonisation of coal is
Coke
Ammonia
Tar
Phenol
High acid value of an oil or fat is an indication of
Storage under improper conditions
Absence of unsaturation
Its smaller molecular weight
None of these
Flux addition during smelting of ore is done to
Remove impurities/gangue
Enhance rate of reaction
Accelerate reduction of ore
Separate slag from metal
__________ is used as a catalyst in fat splitting.
ZnO
Ni
V2O5
FeO
Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?
Na2CO3
NaHCO3
H2
None of these
Washing soda is chemically represented by
Na2CO3
Na2CO3.H2O
Na2CO3.10H2O
NaHCO3
Tall oil obtained as a by-product from the black liquor recovery is
A black, sticky & viscous liquid
Used in the manufacture of greases, emulsions & soaps
Composed mainly of rosin & fatty acids
All (A), (B) & (C)
Reaction of calcium carbide with water produces a gas, which is used
As an illuminant
For metal cutting/welding
Both (A) & (B)
Neither (A) nor (B)
Neon gas is
Flammable in nature
Used in color discharge tube
Filled in lamps having tungsten filament
All (A), (B) and (C)
Heating of __________ to 120°C, produces plaster of paris.
Blue vitriol
Gypsum
Calcium silicate
Calcium sulphate