Question

Which of the following is insoluble in water?

• A. $AgF$
• B. $AgI$
• C. $KBr$
• D. $CaC{l}_2$

Answer 1

Answer: (B)

Solubility depends on relative hydration and lattice energies $AgI$ has lower $\Delta H_{\text{hydration}}$ compared to lattice energy.