AP EAMCET · Chemistry · p Block Elements (Group 13 & 14)
Which one of the following elements on doping with germanium, make it a p-type semiconductor?
- A \(\mathrm{Bi}\)
- B \(\mathrm{Sb}\)
- C As
- D Ga
Answer & Solution
Correct Answer
(A) \(\mathrm{Bi}\)
Step-by-step Solution
Detailed explanation
The group 13 elements have 1 electron short to \(\mathrm{Ge}\), thus giving rise to electron deficient bond or a hole which is responsible for electrical conductivity. Thus, group 13 elements (like Ga) on dopping with \(\mathrm{Ge}\), make it \(p\)-type semiconductor. Here…
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