Chemistry - Solid State Question with Solution | TestHub
ChemistrySolid StateElectrical Properties of SolidsEasy2 minPYQ_2025
ChemistryEasysingle choice
Which of the following dopant is added in silicon to obtain n-type semiconductor?
Options:
Answer:
A
Solution:
Silicon is a Group 14 element. To obtain an n-type semiconductor, it must be doped with a pentavalent impurity, which belongs to Group 15 of the periodic table.
Among the given options, Arsenic (As) is a Group 15 element, while Boron (B), Gallium (Ga), and Indium (In) are Group 13 elements (trivalent impurities) which form p-type semiconductors.
Therefore, Arsenic (As) is added to silicon to obtain an n-type semiconductor.
Answer: As
Stream:MHT_CETSubject:ChemistryTopic:Solid StateSubtopic:Electrical Properties of Solids
⏱ 2mℹ️ Source: PYQ_2025
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