Difficulty: Easy
Correct Answer: It has a high dipole moment
Explanation:
Given data
Concept/Approach
Water is a highly polar molecule with a large dipole moment. This strong polarity creates ion–dipole interactions that stabilize separated cations and anions, lowering the free energy of dissolution.
Step-by-step reasoning
• Ionic crystal → ions held by lattice energy. • In water, ion–dipole attractions (Hδ⁺ to anions, Oδ⁻ to cations) hydrate the ions. • Hydration energy counteracts lattice energy → salt dissolves.
Final Answer
It has a high dipole moment
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