NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice
Sodium chloride is soluble in water but not in benzene because
Options
- AΔ H Solvation < Δ H Lattice energy in water and Δ H Solvation > Δ H Lattice energy in benzene
- BΔ H Solvation > Δ H Lattice energy in water and Δ H Solvation < Δ H Lattice energy in benzene
- CΔ H Solvation = Δ H Lattice energy in water and Δ H Solvation < Δ H Lattice energy in benzene
- DΔ H Solvation < Δ H Lattice energy in water and Δ H Solvation = Δ H Lattice energy in benzene
Correct answer
B. Δ H Solvation > Δ H Lattice energy in water and Δ H Solvation < Δ H Lattice energy in benzene
Step-by-step solution
Hydration energy resolve during dissolution in the water while lattice energy gives the energy to break the crystal so For a compound to be soluble, the solvation energy must be greater than the lattice energy. Since, NaCl is soluble in water but insoluble in benzene. Δ H Solvation > Δ H Lattice energy in water and Δ H Solvation < Δ H Lattice energy in benzene