Final answer:
Universal indicator turns yellow in a 0.01 mol/dm³ solution of propanoic acid indicating a mildly acidic pH and red in a 0.01 mol/dm³ solution of sulfuric acid, showing a lower pH. Therefore, the answer is c) Yellow and Red.
Step-by-step explanation:
When universal indicator is added to solutions of different pH, it changes color to indicate the pH level. Propanoic acid (C2H5COOH) is a weaker acid than sulfuric acid (H2SO4), and thus its solution will have a higher pH value. A 0.01 mol/dm3 solution of propanoic acid will have a yellow color, indicating a mildly acidic pH, while the same concentration of sulfuric acid, being a strong acid, will result in a red color on the universal indicator, corresponding to a lower pH value. Therefore, the final colors of the universal indicator in 0.01 mol/dm3 solutions of propanoic acid and sulfuric acid are yellow and red, respectively.