Question

Solution y is a mixture of aqueous potassium chromate(vi) and aqueous potassium dichromate(vi) at equilibrium. Explain, in terms of the position of the equilibrium, what you would see if sulfuric acid were added to solution y

Answer 1

Explanation:

When an alkali like sodium hydroxide is added to the dichromate solution, the orange color of the solution turns to yellow color. This is because the hydroxide ions react with the hydrogen ions and form water. ... Thus, adding of hydroxide ions or alkali converts dichromate to chromate.