Mica is a________conductor of electricity.

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answer is B.

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Detailed Solution

Concept- Mica is non-metal and chemically inert. It is also lightweight and ranges in transparency from opaque to clear. Mica can endure high temperatures; however it only maintains its stability up to 500°C. Mica is used in the electrical industry to create capacitors for radio frequency and high frequency applications.
The question of mica's ability to carry electricity is included in the issue. The amount of free electrons that a metal has on its surface determines how well it conducts heat and electricity. Non-metals don't have free electrons on their surface, and this means that their thermal conductivity has nothing to do with them. The relationship between thermal conductivity and lattice vibration explains why mica has strong thermal conductivity but poor electrical conductivity because its surface lacks free electrons.
Hence, the correct answer is option 2.

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