Q13 / 66 · JEE Advanced 2007 (Paper 2) · Chemistry

Statement I Band gap in germanium is small. Statement II The energy spread of each germanium atomic energy level is infinitesimally small.

A
Statement I is true, Statement II is true, Statement II is a correct explanation for Statement I
B
Statement I is true, Statement II is true, Statement II is not a correct explanation for Statement I
Correct answer
C
Statement-I is true, Statement II is false
D
Statement-I is talse, Statement II is true

Solution

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.

Hence, the correct answer is option: 'C'.

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