Question

What type of crystal defect is produced when sodium chloride is doped with mgcl2?

Answer 1

we know, oxidation state of Na+ ion is +1 and oxidation state of Mg2+ ion is +2 so, when NaCl is doped with MgCl2, each Mg2+ ion replace two Na+ ions to maintain electrical neutrality.

here, one site is occurred by Mg2+ ion while the other remains vacent.

Thus, cation vacancies are occurred in Crystal.

therefore , crystal produced impurity detect

hence, answer : impurity defect is produced when NaCl is doped with MgCl2.

Answer 2

Impurity defect. When NaCl is doped with MgCl2, each Mg2+ ion replaces 2 Na+ ions to maintain electrical neutrality