Solid State Question 260
In the laboratory, sodium chloride is made by burning the sodium in the atmosphere of chlorine gas which is yellow in colour. The cause of yellow colour is
Options:
A) Presence of $ N{{a}^{+}} $ ions in the crystal lattice
B) Presence of $ C{{l}^{-}} $ ions in the crystal lattice
C) Presence of electron in the crystal lattice
D) Presence of face centered cubic crystal lattice
Show Answer
Answer:
Correct Answer: C
Solution:
Yellow colour on heating $ NaCl $ in presence of $ Na $ is due to presence of electrons in anion vacancies (F-centres).
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