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IF(7) is an interhalogen compound. The ...

`IF_(7)` is an interhalogen compound. The total count of lone pairs in one molecule is/are

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The correct Answer is:
21
The structure of `IF _(7)` is as follows :

The is no lone pair of electrons on central I atom. However, each of seven F atoms contains 3 lone pairs of electrons. Hence, total number of lone pairs of electrons in an `IF _(7)` molecule is 21.
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