Question

Which of the following plastics do not have cross-links between their polymer chains?

A. Nylon
B. Melamine
C. Terylene
D. Bakelite

(a) A and B
(b) B and C
(c) A and C
(d) C and D

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Answer

Question:

Which of the following plastics do not have cross-links between their polymer chains?

A. Nylon
B. Melamine
C. Terylene
D. Bakelite

(a) A and B
(b) B and C
(c) A and C
(d) C and D

:

Answer: (c) A and C

Explanation:

  • Nylon and Terylene are types of thermoplastic polymers, meaning their polymer chains are not cross-linked.
  • In contrast, Melamine and Bakelite are thermosetting polymers with cross-linked polymer chains.

Thus, the plastics without cross-links are Nylon (A) and Terylene (C), making the correct answer (c) A and C.


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