Question: why agcl shows frenkel defect?
Answer: AgCl shows Frenkel defect while NaCl does not. Give reason. Frenkel defect is shown by those in which there is large difference in the size of cations and anions. Hence, Frenkel defect is shown by AgCl due to small size of Ag+ ion but not by NaCl because alkali metal ions can not fit into interstital sites.