Covalency is favoured in which of the followi | vedclass

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(D) According to $Fajans'$ rule,covalency is favoured by the following factors:$1$. Smaller size of the cation: $A$ smaller cation has high charge den

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All of these

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(D) According to $Fajans'$ rule,covalency is favoured by the following factors:$1$. Smaller size of the cation: $A$ smaller cation has high charge density,which causes greater polarization of the anion.$2$. Larger size of the anion: $A$ larger anion is more polarizable due to the weaker hold of its nucleus on the valence electrons.$3$. Large charge on the cation or anion: Higher charges increase the electrostatic attraction between the cation and the electron cloud of the anion,leading to greater polarization.Therefore,all the given conditions favour covalency.

Covalency is favoured in which of the following cases?

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