Diamond is a non conductor of electricity because ?
A
There are no free electron
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B
Giant polymer structure
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C
High refractive index
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D
Its IP value is high
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Solution
The correct option is A There are no free electron For every carbon atom in diamond, all the 4 electrons of the valence shell are involved in strong C-C single bonds with 4 neighboring atoms. Thus, there are no free electrons to conduct electricity.