1. Tardigrade
  2. Question
  3. Chemistry
  4. The correct order of increasing polarising power of the cations in the following is AlCl3,MgCl2, NaCl

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The correct order of increasing polarising power of the cations in the following is $ AlCl_3,MgCl_2, NaCl $

AMUAMU 2015Chemical Bonding and Molecular Structure

Solution:

$NaCl < MgCl_2 < AlCl_3$ is the correct order of increasing polarising power of the cations. Because according to Fajan’s rules for cations, high charge and small size of the cation have more polarising power that is ability to distort electron density on an cation and induce partial covalent character
$Na^+ < Mg^{2+} < Al^{3+}$