Coke and sand
Brine and coal
Coke and caustic soda
None of these
B. Brine and coal
Copper sulphate
Ferrous sulphate
Copper nitrate
Aluminium sulphate
Low temperature and low pressure
Low temperature and high pressure
High temperature and low pressure
High temperature and high pressure
Carbonates
Bicarbonates
Phosphates
Sulphates
Merely compression of gas beyond its critical pressure
Joule-Thomson expansion cooling
Heat exchange with colder stream
Adiabatic expansion against a piston or in a turbine
Ethyl alcohol
Ethylene
Both (A) & (B)
Neither (A) nor (B)
Alkaline
Acidic
Neutral
None of these
30
50
70
90
Rosin
Borax
Benzyl acetate
Sodium carbonate
Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency
Metallic soaps with frothing agent and free Stearic acid to achieve transparency
Metallic soaps with frothing agent from which glycerine has not been recovered
None of these
Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens the hard soaps and increases its cleansing action
Soap powder is prepared by mixing soap with hydrated sodium carbonate
Detergents differ from soaps in their action in hard water
Tarnish inhibitor (e.g., Benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc
Oxidation of naphthalene
Propylene alkylation of benzene
Polymerisation of a mixture of benzene & propylene
None of these
1
2.5
5
10
Amorphous isotropic material
Supercooled liquid
Material with sharp definite melting point
Electrical insulator
Employs addition polymerisation
Employs condensation polymerisation
Is a monomer
Is an abrasive material
Flammable in nature
Used in color discharge tube
Filled in lamps having tungsten filament
All (A), (B) and (C)
Ca(OH)2
C2H2
CO2
CaCO3
Lignite
Sub-bituminous
Anthracite
Peat
Increase the density of cement
Decrease the cement setting rate
Both (A) and (B)
Neither (A) nor (B)
Evaporation and burning the concentrate followed by causticisation of products
Multi-effect evaporation only
Selective liquid extraction
Extractive distillation
Dehydrate it
Sinter the ore
Remove CO2 & H2O
Remove arsenic & sulphur
Moisture, ash, sulphur & volatile matter
Moisture & volatile matter
Moisture, sulphur, nitrogen & fixed carbon
None of these
Diaphragm electrolytic cell process
Mercury electrolytic cell process
Lime-soda process
None of these
Naphthalene
Benzol
Ethyl alcohol
Phthalic anhydride
Which is an addition reaction
Which is a substitution reaction
In absolute dark
In presence of sunlight
Nitric acid
Sulphuric acid
Ammonium sulphate
Hydrochloric acid
Adjust the pH of the syrup
Remove the coloring matter from the syrup
Reduce the viscosity of the syrup
Improve the rate of crystallisation of sugar
1
10
25
40
Water
Liquid ammonia
Kerosene oil
Alcohol
V2O5 & Cr2O3.
Oxides of nitrogen & Cr2O3
V2O5 on a porous carrier & oxides of nitrogen
Oxides of nitrogen & V2O5 on a porous carrier
Fire extinguishers
Sugar
Baking powder
Detergents