Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as

While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the

A

Low impact strength

B

High flexibility

C

Better finish and surface appearance

D

High plastic deformation

Thermosetting polymers as compared to thermoplastic polymers

A

Are formed by addition polymerisation

B

Have three dimensional structure

C

Have linear structure

D

None of these

Branched chair polymers as compared to linear polymers have

A

Higher melting point

B

Higher tensile strength

C

Lower density

D

None of these

In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher

A

Densities

B

Melting point

C

Tensile strength

D

Hardness, rigidity & brittleness

Branched chain polymers compared to linear polymers have higher

A

Density

B

Tensile strength

C

Melting point

D

Degree of irregularity in atomic packing

phosphates ----- to most farm land in America.

A

need added

B

need to add

C

need to be adding

D

need to be added

phosphates ---to most farm lands in Bangladesh .

A

need to be adding

B

need to be added

C

need added

D

need to add

Plasticisers are added to polymers to improve their

A

Tensile strength

B

Softness & flexibility

C

Acid resistance

D

Alkali resistance

Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser?

A

Ethylene glycol

B

Stearic acid estors

C

Tricresyl phosphate

D

Esters of phthalic acid

Which of the following sets what kind of line decorations are added to an element, such as underlines, overlines, etc?

A

text-style

B

text-decoration

C

text-line

D

text-decoration-line

Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as

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