1.

Iron can form two types of inos. Compare the ionic sizes of the respective ions.

Answer»

Solution :Both `FE^(2+) and Fe^(3+) have the same nume of protons
but the NUMBER of electron in `Fe^(3+)` is less than ltBrgt that of `Fe^(2+)` . HENCE the effective nuclear CHARGE is
more in the case of `Fe^(3+)` and thereby the ionic SIZE
of `Fe^(3+) ` is less than that of `Fe^(2+)` .


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