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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
- Reduction of H₃C – NC with hydrogen in presence of Ni/Pt as catalyst gives
- Which one of the most reactive towards nucleophilic addition reaction
- In the presence of Lewis acid toluene reacts with chlorine to give
- Cosin used to detect end point of precipitation titration by absorption is called
- In liquid-gas equilibrium,the pressure of vapours above the liquid is constant
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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