A) the distance between the ions is large
B) repulsion exists within \[NaCl\] lattice
C) lattice energy is high
D) size of sodium as well as chlorine is big
Correct Answer: C
Solution :
As the lattice energy is the energy released when a number of gaseous positive and negative ions combine to form one mole of ionic compound. Thus, lattice energy depends upon the force of attraction between oppositely charged ions. In\[NaCl\], the Na4 and \[C{{l}^{-}}\] ions are tightly held together by strong electrostatic forces of attraction. Thus, its lattice energy is very high and it also has a high melting and boiling point.
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