AIIMS 2019 Chemistry Ionic Bonds MCQ Question
Ionic compounds have high melting and boiling points due to stronger electrostatic force of attraction between oppositely charged ions. Lattice enthalpy is directly proportional to the electrostatic forces among the ions.
Correct Answer
Detailed Explanation
Lattice enthalpy, which quantifies the energy required to separate one mole of an ionic compound into its gaseous ions, is directly related to the strength of the electrostatic forces between the ions. In ionic compounds, these forces arise from the attraction between positively charged cations and negatively charged anions, resulting in high melting and boiling points. Since option C correctly reflects this relationship, it is the appropriate choice. The other options, being marked as N/A, do not provide relevant information or alternative explanations related to lattice enthalpy or ionic bonding.
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