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JEE Main Chemistry question

ChemistryChemical Bonding and Molecular StructureJEE Main

CaO and NaCl have the same crystal structure and approximately the same ionic radii. If is the lattice energy of NaCl, the approximate lattice energy of CaO is

Answer: (D)

Solution

Lattice energy is proportional to . For NaCl, ; for CaO,

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Question ID VK-156214