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Polymers and Plastic


13. 

Plastics are the materials obtained by mixing the __________ with the other ingredients which impart special engineering properties.

Answer : B. Resin

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14. 

Plastic resin is used in the paint industry as ________

Answer : A. Ion exchanger

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15. 

Thermo setting plastics are formed by_________

Answer : C. Step polymerisation

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16. 

Which of the following is the example of the syndiotactic polymers?

Answer : B. Gutta percha

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17. 

Which of the following increases the flexibility of the polymer?

Answer : C. Plasticizers

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18. 

Plasticizers ___________ the strength of the plastic

Answer : B. Decrease

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