Chemical Equilibrium Quiz

What is the purpose of adding potassium thiocyanate to the feric chloride solution?

• To increase the pH of the solution

• To neutralize the solution

• To form a deep red feric thiocyanate complex

• To decrease the concentration of feric ions

Why is the solution diluted with distilled water after forming the feric thiocyanate complex?

• To precipitate the complex

• To reduce the intensity of the color for better observation

• To make the solution more acidic

• To increase the concentration of the complex

What is the role of test tube A in the experiment?

• It serves as a control with no added ions

• It contains extra feric chloride

• It includes potassium chloride

• It has additional potassium thiocyanate

How does adding feric chloride to test tube B affect the equilibrium?

• It shifts the equilibrium forward by increasing feric thiocyanate complex

• It has no effect on the equilibrium

• It shifts the equilibrium backward

• It neutralizes the solution

What happens to the color of the solution in test tube D when potassium chloride is added?

• The solution becomes cloudy

• The color becomes lighter

• The color deepens

• The color remains unchanged