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Polymers and Plastic


7. 

The term PVC is used in the plastic industry stands for

Answer : B. Polyvinyl Chloride

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8. 

Consider the following statements about acetylene:
1) It is used in welding industries
2) It is raw material for preparing plastics
3) It is easily obtained by mixing silicon carbide and water
Which of the statements are correct?

Answer : A. 1 and 2 are correct

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9. 

The valency of phosphorus in PCl3 is

Answer : B. 3

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10. 

Terylene is the polyester of

Answer : A. ethylene glycol and phthalic acid

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11. 

A peptide is

Answer : C. polymide

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12. 

Consider the following statements:
I. Bakelite is obtained from phenol and formaldehyde
II. Bakelite is a resin
III. Bakeliteis a thermosetting plastic
IV. Bakelite does not undergo chemical change

Answer : C. I,II,III and IV are correct

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