Question

What type of defect is observed when nacl is doped with mgcl2?

Answer 1

When NaCl is doped with MgCl2, each Mg2+ ion replaces 2 Na+ ions to maintainelectrical neutrality. One site is occupied by Mg2+ ion while the other remains vacant. Thus, cation vacancies are introduced. This defect is called impurity defect.

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