Question
What are the general compositions of interhalogen compounds?
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Answer
(i) The general compositions of interhalogen compounds are $XX ^{\prime}, XX _3{ }_3, XX _5^{\prime}$ and $XX _7^{\prime}$ where halogen $X$ is more electropositive and has larger size than another halogen $X ^{\prime}$. For example,
(ii) As the ratio of radii of $X$ and $X^{\prime}$ increases, the number of atoms of $X^{\prime}$ per molecule of interhalogen compound increases. For example, iodine having the largest size with fluorine of the smallest size forms stable $IF _7$.
(ii) As the ratio of radii of $X$ and $X^{\prime}$ increases, the number of atoms of $X^{\prime}$ per molecule of interhalogen compound increases. For example, iodine having the largest size with fluorine of the smallest size forms stable $IF _7$.
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