A number of ionic compounds, e.g., ${\rm{AgCl}},{\rm{Ca}}{{\rm{F}}_2},{\rm{BaS}}{{\rm{O}}_4}$ are insoluble in water. This is because:

Ionic compounds do not dissolve in water

Water has a high dielectric constant

Water is not a good ionizing solvent

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NEET UG CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

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A number of ionic compounds, e.g.,

\mathrm{AgCl},\mathrm{Ca}{\mathrm{F}_2},\mathrm{BaS}{\mathrm{O}_4}

are insoluble in water. This is because:

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Correct option: D

These molecules have exceptionally high attractive forces in their lattice

Option D (These molecules have exceptionally high attractive forces in their lattice) is correct because the high lattice energy (strong attractive forces) prevents the ions from being easily separated and solvated by water molecules.

NEET UG CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

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