Chemical Bonding and Molecular Structure - Result Question 11

####11. Among the following which compound will show the highest lattice energy?

(a) KF

(b) NaF

(c) CsF

(d) RbF

[1993]

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Solution:

  1. (b) For compounds containing ions of same charge, lattice energy increases as the size the ions decrease. Thus, NaF has highest lattice energy. The size of cation is in the order Na+< K+<Rb+<Cs+.


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