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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: Can you please explain Fajans Rules?How does it affect the melting point?
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[Post New]12 Jan 2008 15:11:07 IST
    Subject: Can you please explain Fajans Rules?How does it affect the melting point?
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studen9t_iit (114)

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Can you please explain Fajans Rules?How does it affect the melting point?
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[Post New]12 Jan 2008 15:17:41 IST
    Subject: Can you please explain Fajans Rules?How does it affect the melting point?
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netkid07 (2009)

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it says that:
the magnitude of polarisation or increased covalent character depends upon no. of factors.......

1---small size of cation
2---large size of anion
3---large charge on either of the 2 ions
4---electroing configuration of cation

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[Post New]12 Jan 2008 23:07:32 IST
    Subject: Re:Can you please explain Fajans Rules?How does it affect the melting point?
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mona840 (717)

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Fajan's rules give de tendency of de cation 2 polarise n de polarisibility of de anion.
Polarisation of ionic compound is a result of distortion of anion by a cation
More polarisation (distortn of anion) more wil b de % of  covalent character.
 
Meltin point wil increase with increase of covalent character
 
 



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