Question

Match the LIST-I with LIST-II 

• A. A-II, B-I, C-IV, D-III
• B. A-I, B-II, C-III, D-IV
• C. A-III, B-IV, C-I, D-II
• D. A-IV, B-III, C-II, D-I

Hint:

Silicon has larger band gap than germanium.

Answer 1

The Correct Option is A

Concept:
Band gap determines electrical conductivity of materials.
Step 1:
Conductors have: \[ 0~eV \] band gap. Insulators have very large band gap: \[ 7~eV \]
Step 2:
Silicon has band gap: \[ 1.12~eV \] \[ C \rightarrow IV \]
Step 3:
Germanium has band gap: \[ 0.67~eV \] \[ D \rightarrow III \]
Step 4:
\[ A-II,\quad B-I,\quad C-IV,\quad D-III \] \[ \boxed{\text{Correct Option = (1)}} \]