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Q.
Which of the following halogen oxides is ionic ?
The p-Block Elements - Part2
Solution:
$ I_4O_9$ is ionic in nature. It is in fact iodate of tripositive iodine cation $(I^{3+})$. Thus, its ionic formula is $I^{3+} \, (IO_3)^-_3$ , i.e., iodine triiodate