Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures
Reduces sulphate ions to sulphides causing obnoxious smell
Increases the quantity of chlorine used for its purification
All (A), (B) and (C)
D. All (A), (B) and (C)
Zinc
Nickel
Platinum
Copper
Employs addition polymerisation
Employs condensation polymerisation
Is a monomer
Is an abrasive material
Drilling of petroleum wells and pickling of steel sheets
Manufacture of cationic detergent
Treatment of spent fuel of nuclear reactor
None of these
Blue vitriol
Plaster of Paris
Gypsum
Zeolite
Blue vitriol
Gypsum
Calcium silicate
Calcium sulphate
Remove impurities/gangue
Enhance rate of reaction
Accelerate reduction of ore
Separate slag from metal
Flint
Hard
Pyrex
Soda
Cutting
Fibrillation
Hydration
Strengthening
Detergent
Vanaspati
Soap
Mercaptans
Prevent redeposition of soil on cleaned surface
Act as optical brightening agent
Inhibit corrosion in washing machines made of aluminium
None of these
Ostwald's
Bosch
Solvay
Haber's
Propyl alcohol
Acetone
Trichloroethylene
Formaldehyde
1 atm & 100°C
5 atm & 275°C
100 atm & 500°C
50 atm & 1000°C
Autothermal
Trickle bed
Plug flow
None of these
Poorer tensile strength
Poorer resistance to oxidation
Greater amount of heat build-up under heavy loading
All (A), (B) and (C)
Gypsum
Silicates
Sodium silicate
Carbonates
Reduce its viscosity
Increase its viscosity
Reduce the variation in its viscosity with temperature
Increase the variation in its viscosity with temperature
Brine
Chloramines
Sodium bisulphite
Liquid chlorines
Coke breeze
Lime powder
Silica/quartz
Dolomite
5
70
500
1700
Pyrex
Flint
Crookes
None of these
Drying oil
Non-drying oil
Semi-drying oil
Saturated oil
As a rocket fuel
In water treatment
As a disinfectant
As fire retardant
Cellulose
Lignin
Both (A) & (B)
None of these
As an illuminant
For metal cutting/welding
Both (A) & (B)
Neither (A) nor (B)
Manufacture of explosive
Conditioning and humidification of tobacco
Manufacture of pharmaceuticals
None of these
Hydrogenation
Esterification
Saponification
None of these
Galena
Chalcopyrite
Hematite
Bauxite
Gives higher conversion efficiency
Has a longer life and is not poisoned by arsenic
Handles lower SO2 content gas (7 -10% SO2), thus increasing the capital cost of the plant
All (A), (B) and (C)
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