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)
D. All (A), (B) and (C)
Cast
Wrought
Pig
High silicon
5
30
130
300
Washing soda
Soda ash
Slaked lime
Quicklime
Coagulation
Sedimentation
Softening
Disinfection
Presence of air
Absence of air
High concentration
Presence of ammonium salts
Cationic
Anionic
Amphoteric
Semi polar
From waste sulphite substrate of paper mills
By Esterification and hydrolysis of ethylene
From molasses
None of these
Washing soda
Soda ash
Plaster of Paris
Calcite
Alum
Washing soda
Soda ash
Calcium carbide
Fatty acid content
Degree of unsaturation of the fatty acids present in it
Average molecular weight
Insoluble fatty acid content
Rhombic sulphur
Monoclinic sulphur
Plastic sulphur
Milk of sulphur
Furnace → converter → absorber
Furnace → evaporator → absorber
Furnace → converter → evaporator
Converter → furnace → absorber
Electrical insulator
Allotrope of carbon
Moderator used in nuclear reactor
Both (B) and (C)
Around 10% alcohol
Around 1% acetic acid
Both (A) and (B)
Neither (A) nor (B)
Soda-lime
Fibre
Lead
Borosilicate
Toluene
Phenol
Propylene
Naphthalene
Pyrex
Soda lime
Lead
High silica
Cellulose acetate
Regenerated cellulose
Cellulose nitrate
Cellulose acetate butyrate
Calcium sulphate
Sodium chloride
Sodium sulphate
Magnesium chloride
Hard water contains sulphate
They form insoluble calcium soaps which precipitate
They attract back the removed dirt
None of these
Lower melting point & higher reactivity to oxygen
Higher melting point & higher reactivity to oxygen
Lower melting point & lower reactivity to oxygen
Higher melting point & lower reactivity to oxygen
Hydration
Dehydration
Hydrolysis
Loss of CO2
Aeration of water is effective in CO2 removal
The zeolite water softening process reduces the hardness of water by not more than 50%
Sodium sulphate or sodium carbonate do not cause hardness in water
Water with pH value less than 7, is acidic
-83
-183
-196
-218
Explosive
Rocket fuel
Detergents additive
None of these
5000 to 10000
20000 to 250000
500 to 5000
106 to 109
Diastase
Maltase
Yeast
None of these
3
12
22
0.3
Chlorine
Ferric sulphate
Calcium sulphate
Activated carbon
Chlorine
Ammonium chloride
Sodium carbonate
Sodium bi-carbonate