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C and Si both have same lattice structur...

`C` and `Si` both have same lattice structure, having `4` bonding electrons in each. However, `C` is insulator whereas `Si` is intrinsic semiconductor. This is because

A

the four bonding electrons in the case of C lie in the third orbit wheras for Si they lie in the fourth orbit

B

In case of C the valence bond is not completely filled at absolute zero temperature

C

in case of C the condluction band is party filled even at absolute zero temperature

D

the four bonding electrons in the case of C lie in the second orbit wheras in the case of Si they lie in the third

Text Solution

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Energy required to pull electrons from second orbit more than from thir orbits .
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MODERN PUBLICATION-SEMICONDUCTOR ELECTRONICS METERIALS DEVICES AND SIMPLE CIRCUITS -COMPETION FILE (MULTIPLE CHOICE QUESTIONS WITH ONLY ONE CORRECT ANSWER)
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