Disinfection and control of taste & odour
Corrosion control
Removing turbidity
Control of bacteria
A. Disinfection and control of taste & odour
Sintering
Annealing
Shaping or forming
Melting
Cannot be made from sulphite pulp
Utilises H2SO4, NaOH and CS2 during its manufacture
Cannot yield textile grade fibre
None of these
CaO, SiO2, Al2O3
MgO, SiO2, K2O
Al2O3, MgO, Fe2O3
CaO, MgO, K2O
Reverse osmosis
Sand filter
Lime soda
Permutit
Sand to cement ratio
Water to cement ratio
Ambient temperature fluctuation
Drying period
Na2SO4
CaSO4
MgSO4
BaSO4
50
100
200
300
FeSO4
PbO
CaO
NaOH
Polyurethane
Phenol formaldehyde
Polychlorophrene
Styrene-butadiene rubber
Bicarbonates & sulphates of calcium and magnesium
Undesirable taste and odour
Bacteria
Its corrosiveness
Detergent
Vanaspati
Soap
Mercaptans
Carbon
Arsenic
Lead
Sulphur
Calcium chloride
Potassium sulphate
Sodium sulphate
Calcium sulphate
Preferred over contact process for producing 98 to 100% H2SO4 and various oleums
Non-catalytic and operates only on pyrites
A batch process for directly producing high strength (98 to 100%) H2SO4
None of these
10
25
50
98
Cold lime process
Coagulation
Hot-lime soda process
Sequestration
Benzoic acid
Phenol and acetone
Isoprene
Styrene
Drying
Semi-drying
Non-drying
None of these
Propyl alcohol
Acetone
Trichloroethylene
Formaldehyde
CO and H2
N2 and H2
H2, CH4 and CO
CO2 and H2
Prevent redeposition of soil on cleaned surface
Act as optical brightening agent
Inhibit corrosion in washing machines made of aluminium
None of these
Dehydration
Reduction
Oxidation
Polymerisation
It is very corrosive at elevated temperature
Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced)
It decomposes on further increasing the temperature
None of these
Cellulose acetate
Regenerated cellulose
Cellulose nitrate
Cellulose acetate butyrate
Pigment
Thinner
Dryer
Anti-skimming agent
Called ester value
Always negative
Constant for all fatty oils
None of these
CaCO3
MgCO3
Na2CO3
CaSO4
Fertiliser manufacture
Car battery solution
Synthesis of oleum
Water treatment
Vertical shaft
Rotary
Fluidised bed
Fixed bed
Ethyl benzene
Ethylene oxide
Ethanol
Ethane