The sBlock Elements - Result Question 9

####10. In crystals of which one of the following ionic compounds would you expect maximum distance between centres of cations and anions? [1998]

(a) LiF

(b) CsF

(c) CsI

(d) Lil

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Solution:

  1. (c) AsCs+ion has larger size than Li+and I has larger size than F, therefore maximum distance between centres of cations and anions is in CsI.


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