Question

What is correct about ionic-product of an electrolyte ?

• A. It is always equal to its solubility product
• B. Can be < or equal to $K_{sp}$
• C. Always < $K_{sp}$
• D. Can be <, equal to or > $K_{sp}$

Answer 1

Answer: (D)

The ionic product of an electrolyte can be less than, equal to or greater than the solubility product.
For unsaturated solution, the ionic product is less than the solubility product.
For a saturated solution, the ionic product is equal to the solubility product.
For a supersaturated solution, the ionic product is more than the solubility product.