Question

Which of the following is least soluble in water?

• A. $AgCl$
• B. $AgBr$
• C. $AgI$
• D. $AgF$

Answer 1

Answer: (C)

According to Fajan's rules:

Polarization $\propto$ Size of anion $\propto$ covalent character

The solubility order is: $AgF>AgCl>AgBr>AgI$ .