Question

The impurity atoms with which pure silicon should be doped to make a n–type semiconductor are those 

(1) Boron

(2) Indium

(3) Antomony 

(4) Aluminium

Answer 1

Correct option: (3) Antomony

Explanation:

As n–type semiconductor is obtained by adding pentavalent impurity atom. Hence impurity should be of antomony out of all the four choices given.