The monomer of natural rubber is

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

The monomer for the production of neoprene rubber is

A

Acetylene

B

Chloroprene

C

Isoprene

D

None of 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

Natural rubber is obtained from milky sap of tropical trees.

A

Yes

B

No

In the world production of natural rubber, India ranks ________

A

Second

B

Third

C

Fourth

D

Fifth

The substance that is added to make natural rubber strong and more bouncy is

A

Polythene

B

Sponge

C

Sulphur

D

Chlorine

Natural rubber is the polymer of :

A

Isoprene

B

Styrene

C

Butadiene

D

Ethylene

The basic chemical building block of natural rubber obtained from trees is

A

Isoprene

B

Vinyl Chloride

C

Acetylene

D

Neoprene

The monomer of natural rubber is

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