Select the correct statement.

Options

A. Both lattice energy and hydration energy decrease with ionic size
B. Lattice energy can be calculated using Born-Haber cycle
C. If the cation is large compared to the anion, the lattice energy will remain almost constant within a particular group
D. All of the above are correct statements

Answer

D

Explanation

(A) Lattice energy `prop (1)/("Ionic size")`, Hydration energy `prop (1)/("Ionic size")`
(C) Lattice energy `prop (Z^(o+)Z^("ө"))/((r^(o+)+r^("ө")))`
Charge on cation and anion remains same
`rArr` If `r^(o+) gt gt r^("ө")` Lattice energy `prop (Z^(o+)Z^("ө"))/(r^(o+))` (Charge remaining constant for a group)