1.

How many of the following ionic compounds have coordination number of either cation or anion equal to 6 or more : ZnS, KCl, K_2O, CsBr, NaBr,CaF_2

Answer»


Solution :ZNS`to` Zinc bende STRUCTURE, C.N. =4
`Kclto` Rock salt, CN=6
`K_2Oto` Antifluorite structure , CN of `K^+=4`
CsBr`to` CN=8
NaBr`to` Rock salt, CN=6
`CaF_2to`FLUORIDE structure, CN of `F^(-)=4CN` of `CA^(2+)=8`


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