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Which of the following are responsible for high electrical and thermal conductivity of a metal?

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in Chemistry – Class 12 by (188k points)
Which of the following are responsible for high electrical and thermal conductivity of a metal?

(a) Ions

(b) Covalent bonds

(c) Free H+ ions

(d) Free and mobile electrons

The question was posed to me at a job interview.

The question is from Classification of Crystalline Solids topic in portion Solid State of Chemistry – Class 12

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The correct answer is (d) Free and mobile electrons

Explanation: Each atom of a metal gives one or more electrons towards the sea of mobile electrons it is surrounded by which ultimately contributes to the electrical and thermal conductivity of the metal.

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