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Chemistry
Which of the following statements is true about semiconductors?
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Q. Which of the following statements is true about semiconductors?
The Solid State
A
Impurity of lower group creates $n$-type semiconductors
4%
B
Impurity of higher group creates $p$-type semiconductors
12%
C
Extrinsic semiconductors are formed by doping impurity
48%
D
Intrinsic semiconductors become conductors when temperature is raised
35%
Solution:
Intrinsic semiconductors are insulators at room temperature and become semiconductors when temperature is raised.