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Generally, it was said that plastics are bad conductors of heat and electricity. Which of the following is true according to plastics and their conductivity?
I. Plastic core is present in refrigerators or freezers
II. Electrical wires are covered by a plastic covering
III. Handles of cooking pans are made up of plastics.
IV. Plastics are used for making parachutes.
The correct facts are

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I, II and III only

I and II only

I and III only

I, II and IV only

answer is A.

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Detailed Solution

Plastics are not used to make parachutes. Terylene, Kevlar and Nylon are mostly used.

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