Solid State Question 101
Question: The flame colours of metal ions are due to
[KCET 2003]
Options:
A) Frenkel defect
B) Schottky defect
C) Metal deficiency defect
D) Metal excess defect
Show Answer
Answer:
Correct Answer: D
Solution:
In metal excess defect when holes created by missing of anions are occupied by electrons, there sites are called F-centres and are responsible for colour in the crystal.
BETA
