Q58 of 83 Page 57

Which of the following has cross-linked polymer chains?

Bakelite is a thermosetting plastic which is a poor conductor of heat and electricity. It is used to make electrical switches and handles of utensils.

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Rayon is different from truly synthetic fibres because:

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The synthetic material which can be used for marking fabrics as well as shatterproof bottles and jars is:

 59

The man-made fibre made from the cellulose polymer is:

 60

Which of the following is not a thermoplastic polymer?