Q. Polymerisation process in which two or more monomers of chemically different nature take part is called

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Q. Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800 ?

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Q. Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance.

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Q. Which of the following types of polymers has the strongest inter particle forces ?

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Q. A copolymer of vinyl and vinylidine chloride is called

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Q. Ebonite is a/an

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Q. Elastomers are

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Q. Which of the following additives are added to plastics to make it impervious to X-rays ?

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Q. Paper like thin plastic articles can be produced by

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Q. Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.

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Q. __________ polymer is used for making unbreakable crockery.

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Q. Flexible plastic pipes are made of

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Q. Main constituent of natural rubber is

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Q. In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

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Q. Thermal pyrolysis of ethylene dichloride produces

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Q. Pick out the wrong statement.

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Q. The only natural thermoplastic resin, which is a product of animal life is

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Q. Silicone is a/an

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Q. Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation ?

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Q. Polymers are

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