Collagen
Tannin
Molasses
Carbohydrate
A. Collagen
Mineral salts
Carbohydrates
Fats
Proteins
V2O5
Pt
Ni
Cr
Can be repeatedly melted
Is useful for melt casting
Cannot be melted after forming
Is useful for spinning
30
50
70
90
Hard
Soft
Metallic
Lubricating
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
Soap from lye
Glycerine from lye
The metallic soap
The unsaponified fat from soap
10
20
50
85
High electrical insulation properties
Sharp melting points
Low co-efficient of thermal expansion
Compressive strength much greater than their tensile strengths
PVC
Silicone
Polyurethanes
Polyamides
Nickel
Vanadium
Silica gel
Alumina
Disinfection and control of taste & odour
Corrosion control
Removing turbidity
Control of bacteria
Not a fumigant
BHC (Benzene Hexachloride) containing 99% γ-isomer
A by-product of BHC manufacture
Both (B) and (C)
Soap
Metallic soap
Detergent
Alkaloid
5
70
500
1700
Hydration
Dehydration
Hydrolysis
Loss of CO2
Producer gas
Water gas
Coke oven gas
All (A), (B) and (C)
Hard water contains sulphate
They form insoluble calcium soaps which precipitate
They attract back the removed dirt
None of these
Viscose rayon
Corundum
Plasticiser for unsaturated polyester
Paints
Adsorbing on palladium
Absorbing in ethanolamine
Scrubbing with wash oil
Passing it through electrostatic precipitator
It does not react with water
It is poisonous
Its kindling temperature in dry air is very low
It is unstable
Pesticides
Plasticisers for unsaturated polyesters
Pain-relieving drugs (analgesic)
Tranquilisers
Storage under improper conditions
Absence of unsaturation
Its smaller molecular weight
None of these
P
√P
P2
1/P
Chloramine
Chlorine
Ferrous sulphate
Hydrogen peroxide
Improve its resistance to rancid oxidation
Raise its melting point
Remove double bonds
None of these
Slag cement
Glasses
Porcelain/Potteries
Teflon
Salt, limestone and coke or gas
Ammonia, salt and limestone
Ammonia limestone and coke
None of these
Perspex
Nylon-66
Polystyrene
Bakelite
Fatty acid
Fatty alcohols
Tallow
Detergents