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The impurity atoms, with which pure silicon should be doped to make a p-type semiconductor, are those of 

Option: 1

Bismuth


Option: 2

Silver


Option: 3

Antimony 


Option: 4

Aluminium


Answers (1)

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P-type semiconductor is obtained when Si or Ge (tetravalent) is doped with group ll trivalent impurities like aluminium, boron etc.

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SANGALDEEP SINGH

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