Q46 / 150 · MHT CET 2022 (05 Aug Shift 1) · Chemistry

Which among the following is correct decreasing order of covalent character of ionic bond?

  • Correct answer
    A
    $\mathrm{AlCl}_3>\mathrm{MgCl}_2>\mathrm{NaCl}$
  • B
    $\mathrm{AlCl}_3>\mathrm{NaCl}>\mathrm{MgCl}_2$
  • C
    $\mathrm{MgCl}_2>\mathrm{MgCl}_2>\mathrm{AlCl}_3$
  • D
    $\mathrm{NaCl}>\mathrm{MgCl}_2>\mathrm{AlCl}_3$

Solution

More is the change on cation greater is polarising power and more is the covalent character order of polarizing power $\mathrm{Al}^{+3}>\mathrm{Mg}^{+2}>\mathrm{Na}^{+}$

Hence, the correct answer is option: 'A'.

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