NEET Solved Paper 2018 Question 9

Question: Regarding cross-linked or network polymers, which of the following statements is incorrect? [NEET - 2018]

Options:

A) Examples are bakelite and melamine.

B) They are formed from bi- and tri-functional monomers.

C) They contain covalent bonds between various linear polymer chains.

D) They contain strong covalents bonds in their polymer chains.

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Answer:

Correct Answer: D

Solution:

  • Cross linked or network polymers are formed from bi-functional and tri-functional monomers and contain strong covalent bonds between various linear polymer chains, e.g. bake lite, melamine etc. Option [d] is not related to cross-linking. So option [d] should be the correct option.