Question

Least ionized salt is

• A. $KCl$
• B. $AgCl$
• C. $MgC{l}_2$
• D. $CaC{l}_2$

Answer 1

Answer: (B)

Least ionised salt will be one which has highest covalent character.
$\because KCl,MgC{l}_2$ and $CaC{l}_2$ are chlorides of members group 1 and group $2$ of periodic table.
$\therefore$ They are ionic.
$AgCl$ is chloride of $d$-block elements.
So, it is least ionic and least ionised.