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Predict the Co-ordination No. of Cs+ Ion

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प्रश्न

Predict the co-ordination No. of cs+ ion if `r_(Cs)^+` = 1.69Å and `r_(Cl)^-` = 1.81Å.

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उत्तर

The radius ratio (r+/r) defines the coordination number of the cation

`r_(Cs^+) = 1.69 Å, r_(Cl^-) = 1.81 Å`

`∴ r_(Cs^+)/r_(Cl^-) = 1.69/1.89 = 0.9337`

Since, radius ratio is greater than 0.732, the coordination number of cation (Cs+) is 8.

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2015-2016 (July)

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