When NaCl crystal is doped with `MgCl_(2)`,the nature of defect produced is

When NaCl is doped with MgCl_(2) the nature of defect produced is

NaCl crystal is doped with 10^(-3)mol% of SrCl_(2) . The concentration of cation vacancies in doped NaCl is-

When Ge crystals are doped with phosphorus atom, then it becomes

When Ge crystals are doped with phosphorus atom, then it becomes

I mol of NaCl is doped with 10^(-5) mole of SrCl_(2) .The number of cationic vacancies in the crystal lattice will be

When Ge crystals are doped with phosphorous atom, then it becomes —

What is an impurity defect? What kind of impurity defect is generated in a NaCl crystal when it is doped with a small amount of SrCl_(2) ? Calculate the number of cation vacancy per Sr^(2+) ions is this crystal?