Related Questions

Styrene-butadiene-rubber (SBR) as compared to natural rubber has
A Poorer tensile strength
B Poorer resistance to oxidation
C Greater amount of heat build-up under heavy loading
D All of the above
Styrene butadiene rubber (SBR) as compared to natural rubber has
A Poor tensile strength
B Poorer resistance
C Greater amount of heat build up heavy loading
D All of the above
Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?
A Ammonium alum
B Potassium alum
C Both A & B
D Neither A nor B
Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its
A Elasticity
B Strength
C Plasticity
D Weathering characteristics
A volatile substance added to a paint to make its application easy and smooth, is known as
A Base
B Solvent
C Vehicle
D None to these
Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.
A Unsaturated hydrocarbon content
B Calorific value
C Quantity of propane
D Quantity of butane
Which of the following is added to iron to make iron hard and strong?
A Zinc
B Copper
C Carbon
D Sodium
Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is
A 0
B 1
C ∞
D None of these
Natural rubber is obtained from milky sap of tropical trees.
A Yes
B No
The monomer of natural rubber is
A DMT
B Isoprene
C 2 methyl-1-propene
D Both B and C

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