Q. Valcunisation of rubber decreases its

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Q. Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins.

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Q. Polystyrene is a light, transparent, thermoplastic material used for making

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Q. Vulcanisation of raw rubber makes it

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Q. Diphenylamine is added to rubber to

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Q. Buna-S is also called

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Q. The rate controlling step in the manufacture of silicone rubber is the

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Q. Polypropylene compared to polythene is

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Q. Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitfile copolymer with butadiene based elastomer, is a/an

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Q. Orlon is

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Q. The physical state in which polymers exist is

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Q. Molecular weight of polymers are in the range of

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

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Q. Amino resins are used in paper treatment to improve its

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Q. Polystyrene is a __________ plastic at room temperature.

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Q. Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are

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Q. Poly Vinyl chloride (PVC) is a __________ material.

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Q. Liners of bags are usually made of

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Q. Polyurathane can not be used for making

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Q. Pick out the wrong statement.

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