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Question

Which among the following is best conductor of electricity?

A
Potassium
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B
Sodium
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C
Copper
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D
Iron
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Solution

The correct option is C Copper
Pure silver is the most conductive of all metals. Copper is a metal which is a good conductor of electricity. Hence, copper is largely used in making electric wires.
Metals like sodium and potassium are so soft in nature that they can not be moulded in wire. Iron being metal conducts electricity but copper comparatively is a better conductor.

Hence, among the given options, copper is the best conductor.

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