Question

Amongst $LiCl, RbCl, BeCl_2$ and $MgCl_2$ the compounds with the greatest and the least ionic character, respectively are :

• A. $LiCl$ and $RbCl$
• B. $RbCl$ and $BeCl_2$
• C. $MgCl_2$ and $BeCl_2$
• D. $RbCl$ and $MgCl_2$

Answer 1

Answer: (B)

$RbCl$ and $BeCl_2$

Answer 2

According to Fajan?s rules smaller, highly charged cation has greatest covalent character while large cation with smaller charge has greatest ionic character.