Sodium chloride is soluble in water but not in benzene because

Options

A. `Delta H_("hydration") lt Delta H_("lattice energy in water") and Delta H_("hydration") gt Delta H_("lattice energy in benzene")`
B. `Delta H_("hydration") gt Delta H_("lattice energy in water") and Delta H_("hydration") lt Delta H_("lattice energy in benzene")`
C. `Delta H_("hydration") = Delta H_("lattice energy in water") and Delta H_("Hydration") lt Delta H_("lattice energy in benzene")`
D. `Delta H_("hydration") lt Delta H_("lattice energy in water") and Delta H_("hydration") = Delta H_("lattice energy in benzene")`

Answer

B

Explanation

For a substance to dissolve, the energy evolved when the ions are hydrated (hydration energy) must be larger than the energy required to break the crystal lattice (lattice energy). Conversely if the solid is insoluble, the hydration energy is less than the lattice energy