Chemistry - Solid State Question with Solution | TestHub

Silicon is a Group 14 element. To form a p-type semiconductor, it must be doped with a trivalent impurity, which is an element from Group 13.

Among the given options, Ga (Gallium) belongs to Group 13.

Sb (Antimony), As (Arsenic), and P (Phosphorus) belong to Group 15 and are pentavalent impurities used to produce n-type semiconductors.

Therefore, Ga is used to produce a p-type semiconductor.

Answer: Ga