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p-type silicon is formed by adding a minute amount of an element with
Options
(a) five valence electrons
(b) three valence electrons
(c) six valence electrons
(d) four valence electrons
Correct Answer:
three valence electrons
Explanation:
p-type silicon is formed by adding a minute amount of a trivalent elements like boron or aluminium. The three electrons of these elements form covalent bonds with the neighbouring silicon atoms. This causes an electron vacancy in the crystal. Therefore p-type silicon is formed with an element of three valence electrons.
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Topics: Solid State and Solutions
(91)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following is a Lewis acid
- What is the product of the reaction of phenol with CHCl₃ in aqueous NaOH
- Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is :
- 100 cm of a given sample of H₂O₂ gives 1000 cm³ of O₂ at STP. The given sample is
- The effective atomic number for [Rh(H₂O)₆]³⁺ (atomic number for Rh is 45) is
Topics: Solid State and Solutions (91)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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