Question

15. How are non-stoichiometric point defects classified? Explain with diagram the metal deficiency defect.​

Answer 1

Answer:

This defect is possible only in compounds of metals that show variable oxidation states. In some crystals, positive metal ions are missing from their original lattice sites. The extra negative charge is balanced by the presence of cation of the same metal with higher oxidation state than that of missing cation.

Answer 2

Answer:

$\huge\underline{\bf\red{Answer}}$

This defect is possible only in compounds of metals that show variable oxidation states. In some crystals, positive metal ions are missing from their original lattice sites. The extra negative charge is balanced by the presence of cation of the same metal with higher oxidation state than that of missing cation.

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