Question

Which of the following is not an example of intrinsic semiconductor?

• A. $Si$
• B. $Ge$
• C. $Sn$
• D. $Al$

Answer 1

The correct option is D $Al$

$\begin{array}{c}\text{Al is a metal and not a semiconductor.}\\ \text{Hence, given answer is wrong.}\\ \text{correct answer is D.}\end{array}$