Chemistry · States of Matter - Gases, Liquids and Solids
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Which one of the following can conduct electricity in a solid state?
- A
Diamond
- B
Graphite
- C
Nail
- D
Iodine
Option A: Diamond does not conduct electricity.
Option B: In graphite, each carbon is bonded to three other carbon atoms hence leaving behind a free electron. Due to the presence of this one delocalized electron, graphite is a good conductor of electricity.
Option C: fingernails do not conduct electricity and thus cannot be employed to enter information on a conductive touch screen. Users with long fingernails cannot easily touch the touch screen with their finger
Option D: Iodine is a nonmetal and therefore, it is an insulator that is, relatively, a poor conductor of electricity and heat.
Diamond does not conduct electricity.
In graphite each carbon is bonded to three other carbon atoms hence leaving behind a free electron. Due to the presence of this one delocalised electron, graphite is a good conductor of electricity .
Fingernails do not conduct electricity and thus cannot be employed to enter information on a conductive touch screen. Users with long fingernails cannot easily touch the touch screen with their finger.
Iodine is a nonmetal and therefore, it is an insulator that is, relatively, a poor conductor of electricity and heat .
Tagged under Chemistry · States of Matter - Gases, Liquids and Solids · 2021