Statement I : Bald gap in germanium is small

Question

Read the following question and answer as per the direction given below :

(a) Statement I is true: Statement II is true; Statement II is the correct explanation of Statement I.

(b) Statement I is true; Statement II is true; Statement II is not the correct explanation of Statement I.

(c) Statement I is true: Statement II is false.

(d) Statement I is false; Statement II is true. 

Statement I : Bald gap in germanium is small 

Statement II : The energy spread of each germanium atomic energy level is infinitesimally small.

Answer 1

Correct option  (b) Statement I is true; Statement II is true; Statement II is not the correct explanation of Statement I.

Explanation:

Germanium, semi-conductor substance, has small band gap in comparison to insulator (non-metal).

On moving top to bottom in the group 14 band gap decreases.