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Sodium chloride is soluble in water but ...

Sodium chloride is soluble in water but not in benzene because

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")`

Text Solution

Verified by Experts

The correct Answer is:
B
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
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