NCERT Class XII Chemistry
Chapter - The Solid State
Questions with Solutions
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Question : 47
Total: 50
Explain how vacancies are introduced in an ionic solid when a cation of higher valency is added as an impurity in it.
Solution:
When a cation of higher valency is added as an impurity in the ionic solid, some of the sites of the original cations are occupied by the cations of higher valency. Each cation of higher valency replaces two or more original cations and occupies the site of one original cation and the other site(s) remains vacant.
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