Phthalic anhydride
Vinyl chloride
Maleic anhydride
Dacron
B. Vinyl chloride
Decreases its tensile strength
Increases its ozone & oxygen reactivity
Increases its oil & solvent resistance
Converts its plasticity into elasticity
Pyrex
Flint
Crookes
None of these
Zinc
Lead
Boron
Selenium
Before
After
During
To avoid
Red
Yellow
Violet
Black
10
50
80
95
Laminates
Card boxes
Furniture
Books
80
90
98
100
Bauxite
Limestone
Quartz
Manganese
Toluene
Ethyl alcohol
Naphthalene
Benzene
Slow sand filters can remove colour completely
Activated carbon can be used for taste & odour control without subsequent filtration
Application of activated carbon reduces the temporary hardness of water
Normally, the turbidity is removed by adding a coagulant prior to sedimentation
Yields acid of higher concentration than chamber process
Yields acids of lower concentration than chamber process
Is obsolete
Eliminates absorber
Storage under improper conditions
Absence of unsaturation
Its smaller molecular weight
None of these
Aluminium
Silver
Copper
All (A), (B) and (C)
Pasteurisation of milk involves moderate heating followed by cooling
Bakeries and breweries make use of yeasts
Enzyme is a complex nitrogenous compound
Oils and fats are alkaloids
Anthracene
Creosote oil
Carbolic oil
None of these
Light soda ash
Dense soda ash
Sodium bicarbonate
Dehydrated soda ash
Bi-carbonates
Sulphates & chlorides
Carbonate
None of these
Catalytic dehydrogenation of ethyl benzene
Dehydration of ethyl alcohol followed by hydrogenation
Reacting ethylene oxide with acetaldehyde
Fermentation of starch
Sulphur
Charcoal
Potassium nitrate
All (A), (B), & (C)
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
Ni
Cr
V2O5
Al2O3
Slaked lime
Soda lime
Calcium perchlorate
None of these
Ground-wood
Board
Tissue
Wrapping
C
CO
CO2
H2
Sodium silicate
Sodium borate
Sodium tripolyphosphate (STPP)
Caustic soda
200-300
700-850
2000-2200
4000-4500
Increase the density of cement
Decrease the cement setting rate
Both (A) and (B)
Neither (A) nor (B)
Thinner
Pigment
Both (A) & (B)
Neither (A) nor (B)
50
100
200
300