Which of the following is the correct order of increasing number of lone pair of electrons on the central…

1. $\mathrm{IF}_5 < \mathrm{XeF}_2 < \mathrm{IF}_7 < \mathrm{ClF}_3$
2. $\mathrm{IF}_7 < \mathrm{ClF}_3 < \mathrm{XeF}_2 < \mathrm{IF}_5$
3. $\mathrm{IF}_7 < \mathrm{XeF}_2 < \mathrm{ClF}_2 < \mathrm{IF}_5$
4. $\mathrm{IF}_7 < \mathrm{IF}_5 < \mathrm{ClF}_3 < \mathrm{XeF}_2$

Asked in: AP EAMCET 2023 (18 May Shift 1)

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