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carbon,silicon and germanium have four valence electon each.at room tempreture which one of the following statement is most appropriate? a)the number of free conduction electrons is negligible small in all the three b)the number of free electrons for conduction is significant in all the three. c)the number of free conduction electron is significant in c but small in si and ge d)the number of free electrons for conduction is significant only in si and ge but small in c.

carbon,silicon and germanium have four valence electon each.at room tempreture which one of the following statement is most appropriate?
a)the number of free conduction electrons is negligible small in all the three
b)the number of free electrons for conduction is significant in all the three.
c)the number of free conduction electron is significant in c but small in si and ge
d)the number of free electrons for conduction is significant only in si and ge but small in c.

Grade:

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
Dear student

The answer is option a

Regards
Vikas TU
14149 Points
one year ago
 Since carbon is non-metal while silicon and germanium are semiconductor hence at room temperature free electron for conduction is significant for Si and Ge but negligible in carbon. 
Correct option is 1.

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