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The impurity atoms with which silicon should be doped to make...

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The impurity atoms with which silicon should be doped to make p-type semiconductors are

Answer & Solution
Correct Answer: Option C
The impurity atoms with which pure silicon should be doped to make a p-type semiconductors are those of Boron and Aluminium that are trivalent in nature. So, they should be added in pure silicon to make p-type semiconductors.
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