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QJEEAdv07Ch07e2: JEE Advanced 2007 Chemistry - Class 12 JEEAdv07Ch07e2 Solution: This question contains STATEMENT-1 (Assertion) and STATEMENT-2…

This question contains STATEMENT-1 (Assertion) and STATEMENT-2 (Reason) and has 4 choices (a), (b), (c), (d) out of which ONLY ONE is correct.

STATEMENT-1 : Band gap in germanium is small. because

STATEMENT-2 : The energy gap of each germanium atomic energy level is infinitesimally small.

Multiple Choice Options

  • A Statement - 1 is True, Statement - 2 is True; Statement - 2 is a correct explanation for Statement - 1
  • B Statement - 1 is True, Statement - 2 is True; Statement - 2 is not a correct explanation for Statement - 1
  • C Statement - 1 is True, Statement - 2 is False
  • D Statement - 1 is False, Statement - 2 is True

Step-by-Step Verified Solution

A bond gap is the difference between conduction band and valence band. In germanium band gap is 64 kJ/mol. As Ge is semiconductor so, band gap in germanium is small.

IIT-JEE 2007 Paper 2 Offline Chemistry - p-Block Elements Question 60 English Explanation

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

Statement- 1 and 2 both are correct but Statement- 2 is not correct explanation of Statement- 1.

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