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4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
The stability of ionic crystal principally depends on
  • A
    high electron affinity of anion forming species
  • ✓
    the lattice energy of crystal
  • C
    low $I.E.$ of cation forming species
  • D
    low heat of sublimation of cation forming solid
✓

Answer

Correct option: B.
the lattice energy of crystal
b
Stability of ionic crystal depends on lattice energy which is released in the form of heat when two ions are brought together to form a solid. Lattice energy is sum of all the interactions within the crystal.

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