JEE Main · PhysicsEasy
Which of the following is a trivalent impurity used for doping silicon?
- A.Phosphorus
- B.Arsenic
- C.Boron
- D.Antimony
Show correct answer & step-by-step solution
Correct answer: C — Boron
Solution
- Trivalent impurities belong to Group 13 of the periodic table.
- Phosphorus, Arsenic, and Antimony are pentavalent impurities belonging to Group 15.
- Boron is a Group 13 element with three valence electrons.
- Hence the answer is (C).
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