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Arrange the following in order of decrea...

Arrange the following in order of decreasing ionic character.
a. `ClF_(3), SO_(2), N_(2), K_(2)O` and `LiF`
b. `Cl-H, F-H, Br-H, Na-I, K-F` and `Li-Cl`
c. `AlF_(3), AlCl_(3), AlBr_(3)`

Text Solution

Verified by Experts

`N_(2)^(0) ltoverset(+4-2xx2)(SO_(2))ltoverset(+3-1xx3)(CI F_(3))overset(CI F_(3))ltoverset(+1xx2-2)(K_(2)O)ltoverset(+1-1)(LiF)`
According to Fajan's rule, small charge, large cation and small anion, more is the ionic character.
Alternatively: Increases in `EP` (electropositivity) of the element increases the ionic character.
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