Question

5. Which of these plastics is a polymer?
a. bakelite
c. polythene
b. polystyrene
d, all of these​

Answer 1

Answer:

all of the above

Explanation:

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Answer 2

Answer:

d) All of the above

Explanation:

Bakelite :

Bakelite or polyoxybenzylmethylenglycolanhydride was the first plastic made from synthetic components. It is a thermosetting phenol formaldehyde resin, formed from a condensation reaction of phenol with formaldehyde. It was developed by the Belgian-American chemist Leo Baekeland in Yonkers, New York, in 1907.

formula for bakelite is (C6-H6-O.C-H2-O)x

Polythene

Polythene is a type of plastic made into thin sheets or bags and used especially to keep food fresh or to keep things dry. [mainly British] Simply put them into a polythene bag and store them in the freezer for a day. regional note: in AM, usually use polyethylene.

Polystyrene

Polystyrene (PS) /ˌpɒliˈstaɪriːn/ is a synthetic aromatic hydrocarbon polymer made from the monomer known as styrene. Polystyrene can be solid or foamed. General-purpose polystyrene is clear, hard, and rather brittle. ... Polystyrene can be naturally transparent, but can be coloured with colourants. Formula for polystyrene is (C8H8)n

In easy words you can say that all plastics are polymer

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