In the crystals of which of the following ion | vedclass

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(C) The distance between the centres of cations and anions in an ionic crystal is given by the sum of their ionic radii,$d = r_{+} + r_{-}$.To maximiz

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$CsI$

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(C) The distance between the centres of cations and anions in an ionic crystal is given by the sum of their ionic radii,$d = r_{+} + r_{-}$.To maximize this distance,we need to select the cation and anion with the largest ionic radii.Among the given options,$Cs^{+}$ has the largest ionic radius among the cations $(Li^{+}, Cs^{+})$ and $I^{-}$ has the largest ionic radius among the anions $(F^{-}, I^{-})$.Therefore,the compound with the maximum interionic distance is $CsI$.

In the crystals of which of the following ionic compounds would you expect maximum distance between the centres of cations and anions?

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