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An ionic compound is made up of A cations and B anions. if A cations are present at the alternate corners and B anion is present on the body of the diagonal, what is the formula of the ionic compound ? |
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Answer» Solution :(i) As cations A are present at alternate COMERS, i.e. 4 comers, the NUMBER of A cations in the UNIT cell = `4 xx 1/8 = 1/2` (ii) As anions B are present at the body centre, THEREFORE, the number of B ions in the unit cell = 1. Hence, the formula of the compound = `A_(0.5) B_1 ` or `AB_2` |
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