JEE Advanced 2020 Full Test 5 Paper 2

Question : 22 of 54

Marks: +1, -0

Which of the following statements is correct about the conduction of electricity in pure crystal of silicon at room temperature?

The conduction is due to the holes formed from the release of electrons
The conduction is due to the movement of both the electrons released and holes formed
The conduction is only due to the electrons present in fully occupied lowest energy states
The conduction is due to only some electrons capable of leaving the bonds at room temperature

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