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shape of the molecule [IF6]- ionis destoid octahedral according to NCERT XII without reason,why it is not pentagonal pyramidal shape,while angle 72* is less then 90*?

Umesh Jakhar , 13 Years ago
Grade 12th pass
anser 2 Answers
Godfrey Classic Prince

Last Activity: 13 Years ago

Dear Umesh Jakhar,

The Central Atom is Iodine(I) & it is surrounded by 6 fluoride ions !
It also has a lone pair !

It goes as this IF6- = 6 bond pairs + 1 lone pair !

Remember that for Pentagonal Bipyramidal you must have 7 Bond Pairs & no lone pair !!

So this assumes the shape of a distored octahedron & not a pentagonal bipyramidal shape !!

 

Hope you understood !!

All the Best & Good Luck !!Smile
Please approve my answer if you liked it by clicking on "Yes" given below..!!!

Umesh Jakhar

Last Activity: 13 Years ago

I mean pentagonal mono pyramidal not bipyramidal .plz try to understand my problem.which have 6 bond pair and 1 lone pair same as tetraheadral,and less repultion.please explain.

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