Ionic equilibrium

A saturated solution in that in which

• The concentration of dissolved and undissolved solute is the same

• There exists an equilibrium between dissolved and undissolved solute

• The concentration of undissolved solute is almost negligible

• none of the above

The solubility of a substance in a solvent is the concentration in ------ solution

• Unsaturated solution

• Supersaturated solution

• saturated solution

• none of these

Molar solubility is the number of ----- of the substance per liter of the solution

• grams

• Kilograms

• gram equivalents

• moles

if 'S' is the solubility of AgCl in water the solubility product K_sp is given by

• $K_{sp\ }=S$
  

• 
  

  $K_{sp\ }=S^2$

• $K_{sp}=S^3$
  

• $K_{sp}=\sqrt{S}$

The precipitation of a salt takes place if its ionic product is

• equal to its solubility product

• less than its solubility product

• greater than its solubility product

• none of these