Chemistry - Solid State Question with Solution | TestHub
ChemistrySolid StateElectrical Properties of SolidsEasy2 minPYQ_2026
ChemistryEasysingle choice
Which of the following dopant is NOT used in Ge to obtain n-type semiconductor?
Options:
Answer:
D
Solution:
Ge is a Group 14 element.
To obtain an n-type semiconductor, Ge must be doped with a pentavalent impurity (Group 15 element) such as P, As, or Sb.
Boron (B) is a trivalent impurity (Group 13 element). Doping Ge with B results in a p-type semiconductor.
Therefore, B is not used to obtain an n-type semiconductor.
Answer: B
Stream:MHT_CETSubject:ChemistryTopic:Solid StateSubtopic:Electrical Properties of Solids
⏱ 2mℹ️ Source: PYQ_2026
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