Question

F - centre is
a) Anion vacancy occupied by unpaired electron
b) Anion vacancy occupied by electron
c) Cation vacancy occupied by electron
d) Anion present in interstitial site​

Answer 1

Answer:

opt A is right answer.

Explanation:

An F-center, Farbe center or color center is a type of crystallographic defect in which an anionic vacancy in a crystal lattice is occupied by one or more unpaired electrons.