Q. Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is

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

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Q. Rayon is superior to cotton in making gauge for wound treatment, because rayon

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Q. __________ is a thermosetting plastic.

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Q. __________ is a natural fibre.

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Q. Pick out the wrong statement.

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Q. Perspex can be used as a substitute of glass. Its monomer is

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Q. Buna-N is also called

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Q. Polypropylene is preferred to polythene, because the former is

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Q. Nylon-6 as compared to nylon-66 is

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Q. Alkyd resin is a/an

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Q. Most commonly used rubber vulcanisation agent is

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Q. Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber ?

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Q. Maximum consumption of polymers is in

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Q. Low density polythene as compared to high density polythene is

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Q. Phenol formaldehyde is produced by condensation polymerisation. It is also known as

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Q. Polymethyl methacrylate, which is an acrylic resin, is also called

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Q. Silicone resins, which are highly water repellant and has good heat resistance can not be used

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Q. Pick out the wrong statement.

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Q. Which of the following rubbers has the widest service temperature range (-75 to 275°C) ?

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