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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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- The pyknometric density of sodium chloride crystal is 2.165 x 10³ kg m⁻³,
- Activated charcoal is used to remove colouring matter from pure substances.
- The compound containing coordinate bond is
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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
- The IUPAC name of the compound having the formula CCl₃CH₂CHO is
- The pyknometric density of sodium chloride crystal is 2.165 x 10³ kg m⁻³,
- Activated charcoal is used to remove colouring matter from pure substances.
- The compound containing coordinate bond is
- Number of chiral carbon in β-D-(+) glucose 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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