The melting point of FeCl_3 and FeCl_2 is: | vedclass

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Question

(B) The melting point depends on the ionic character of the compound.According to Fajan's rule,$Fe^{3+}$ has a higher charge density than $Fe^{2+}$,wh

Vedclass · Accepted Answer

$FeCl_3 < FeCl_2$

Vedclass · Answer

(B) The melting point depends on the ionic character of the compound.According to Fajan's rule,$Fe^{3+}$ has a higher charge density than $Fe^{2+}$,which leads to greater polarization of the chloride ion.This gives $FeCl_3$ more covalent character compared to $FeCl_2$.Since ionic compounds generally have higher melting points than covalent compounds,$FeCl_2$ (more ionic) has a higher melting point than $FeCl_3$ (more covalent).Therefore,the correct order is $FeCl_3 < FeCl_2$.

The melting point of $FeCl_3$ and $FeCl_2$ is:

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