1.

Calculate the number of bond pairs and lone pairs in Icl_(4)^(-).

Answer»

Solution :No. of valence ELECTRONS in `I = 7`
Out of 7,4 electrons are bonded to four `Cl^(-)` ATOMS.
` :. ` It has 4- bond pairs
No. of LONE pairs = Valence electrons - Bond pairs
` = 7 - 4 = 3`
No. of lone pair ` = 3 + 1` (charge on Cl) = 4 electrons or 2 lone pairs


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