Why does KCl turn violet on heating in the potassium vapours ?

Why does sodium chloride on heating with sodium vapours acquire yellow colour ?

Why does the solid expands on heating?

Why does LiCl acquire pink colour when heated in Li vapours ?

a. NaCl does not exhibit Frenkel. Defect. Do you agree? Justify. b: Assume that a fresh piece of KCl crystal is heated in an atmosphere of potassium " vapours. Is there any. C0lour change? Substantiate your answer.

Why does LiCl acquire pink colour when heated in Li vapours?

ZnO turns yellow on heating . Why ?

Why sodium chloride on heating with sodium vapours acquires yellow colour?

Why sodium chloride on heating with sodium vapours acquires yellow colour?

Why does KCl become violet in colour when it is heated in presence of potassium vapour?