Q72 of 83 Page 57

Which of the following plastics is used for making electric switches?

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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The manufacture of one of the following artificial fibres contributes to deforestation this fibre is :

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The non-stick coating on frying pans is that of a plastic called:

 73

Which of the following are thermosetting polymers?

(A) Melamine


(B) Terylene


(C) Polythene


(D) Bakelite

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The similarity between artificial silk and cotton is that: