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Which of the following is monomer unit of polystyrene:-
(a)

(b)
(c)

(d)


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Important Questions on Biomolecules
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Weakest intermolecular forces are present in:-

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Thermosetting polymer, bakelite is formed by the reaction of phenol with

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Novolaç is a:

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Which of the following is not a semisynthetic polymer?

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The straight chain polymer is formed by

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Chain growth can be controlled by

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Which one of the following polymers is prepared by condensation polymerization?

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Structures of some common polymers are given. Which one is not correctly presented?
