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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.
Related Questions: - A buffer solution contains 0.1 M of acetic acid and 0.1 M of sodium acetate.
- Which colourless gas evolves, when NH₄ Cl reacts with zinc in a dry cell battery
- Which one of the alkali metals, forms only, the normal oxide, M₂O on heating
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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
- A buffer solution contains 0.1 M of acetic acid and 0.1 M of sodium acetate.
- Which colourless gas evolves, when NH₄ Cl reacts with zinc in a dry cell battery
- Which one of the alkali metals, forms only, the normal oxide, M₂O on heating
- Chlorine is in +1 oxidation state in which of the following
- Which one of the following is not a Common component of photochemical smog
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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