Subject :NSO Class : Class 8
Which of the following applications of plastics show(s) that plastics are bad conductors of electricity?
I. Refrigerators have an insulating wool of plastics.
II. Electric wires have a plastic coating.
III. Chemicals are stored in plastic containers.
IV. Parachutes are made from plastics.
A II, III and IV only
B III and IV only
C I only
D II only