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  • Arrange the following molecules in decreasing order of their polarity : CaO , KCl , MgO .Option: 1 CaO , KCl , MgO<div class='qna-optio

Arrange the following molecules in decreasing order of their polarity : CaO , KCl , MgO .

Option: 1

CaO , KCl , MgO


Option: 2

MgO , CaO , KCl


Option: 3

KCl, CaO , MgO


Option: 4

KCl , MgO , CaO


Answers (1)

best_answer

As we learnt

 

Fajan's rule -

1. Smaller the cation larger is its polarising power

2. Bigger the anion, larger is its polarisability

3. Larger the charge on cation, greater is its polarising power

-

 

 According to Fajan's rule, polarity increases as the size of the cation increases.

 

Posted by

Devendra Khairwa

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