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(C) $p$-type semiconductor is formed by doping an intrinsic semiconductor with a trivalent impurity atom (Group $13$ element).Gallium $(Ga)$ is a triv

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Germanium is doped with gallium

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(C) $p$-type semiconductor is formed by doping an intrinsic semiconductor with a trivalent impurity atom (Group $13$ element).Gallium $(Ga)$ is a trivalent element.Therefore,when Germanium $(Ge)$ is doped with Gallium,it creates a $p$-type semiconductor.Bismuth $(Bi)$,Antimony $(Sb)$,and Phosphorus $(P)$ are pentavalent elements (Group $15$),which produce $n$-type semiconductors.

In which of the following statements is the obtained impure semiconductor of $p$-type?

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