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Polymer Technology

Polymer Technology
Cation exchange resins used in water treatment is made from __________ resin.

Phenolic
Epoxy
Urea formaldehyde
Amino

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Polymer Technology
Automobile steering wheels are normally made of

Cellulose nitrate
PVC
Cellulose acetate
High density polythene

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Polymer Technology
The inter particle forces between linear chains in nylon-66 are __________ bonds.

Hydrogen
None of these
Covalant
Ionic

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Polymer Technology
Nylon-6 as compared to nylon-66 is

More abrasion resistant
Harder
Having higher melting point
None of these

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Polymer Technology
Polypropylene compared to polythene is

Stronger
Harder
All of these
Lighter

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Polymer Technology
In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of

Cross linked polystyrene
Phenol formaldehyde resins
Polyamides
Polyesters

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