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131.

Which one of the following is an example of a thermosetting polymer?

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132.

Which of these is not a monomer for high molecular mass silicone polymer?

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133.

Nylon is an example of

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134.

Which is the monomer of neoprene in the following

$CH subscript 2 space equals CH minus straight C identical to CH$
$CH subscript 2 space equals space straight C space minus CH space equals CH subscript 2 space space space space space space space space space space space space space space vertical line space space space space space space space space space space space space space space CH subscript 3$
$CH subscript 2 space equals space straight C space minus CH space equals CH subscript 2 space space space space space space space space space space space space space space vertical line space space space space space space space space space space space space space Cl$
$CH subscript 2 space equals space straight C space minus CH space equals CH subscript 2 space space space space space space space space space space space space space space vertical line space space space space space space space space space space space space space Cl$