MCQ
Amongst $LiCl, RbCl, BeCl_2$ and $MgCl_2$ the compounds with the greatest and the least ionic character, respectively are:
  • A
    $LiCl$ and $RbCl$
  • $RbCl$ and $BeCl_2$
  • C
    $MgCl_2$ and $BeCl_2$
  • D
    $RbCl$ and $MgCl_2$

Answer

Correct option: B.
$RbCl$ and $BeCl_2$
b
According to Fajan's rules smaller, highly charged cation has greatest covalent character while large anion with smaller charge has greatest ionic character

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