Which of the following ionic compounds share the Rock Salt () crystal structure (where anions form a — Solid State Chemistry Question

💡 Solution & Explanation

$KCl$, $AgCl$, $AgBr$, and oxides/sulphides of alkaline earth metals like $MgO$, $CaO$, $SrO$ all typically exhibit the Rock Salt ($NaCl$) structure (C.N. 6:6). $CsCl$ has a different structure where $Cl^-$ is simple cubic and $Cs^+$ is in the cubic void (C.N. 8:8).