1.

For which crystal anion-anion contact is valid ?

Answer»

NaF
NaI
CsBr
KCl

Solution :Iodide ION is LARGEST in size and `Na^+` ion is small in size. Hence, `I^(-) - I^-` CONTACT is possible in `Na^+ I^-` (`Na^+` ion PRESENT in the VOID)


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