Given below are two statements:
Statement I: In redox titration, the indicators used are sensitive to change in pH of the solution.
Statement II: In acid-base titration, the indicators used are sensitive to change in oxidation potential.
In the light of the above statements, choose the most appropriate answer from the options given below

Statement I says that in redox titration, the indicators used are sensitive to change in pH of the solution. This is incorrect. Redox indicators respond to changes in the oxidation potential (electrode potential) of the solution, not to pH changes. Examples include diphenylamine and potassium permanganate, which change colour based on their oxidation state.

Statement II says that in acid-base titration, the indicators used are sensitive to change in oxidation potential. This is also incorrect. Acid-base indicators such as phenolphthalein and methyl orange are sensitive to changes in the pH of the solution, not to oxidation potential.

Both statements have the properties of the indicators swapped — redox indicators track oxidation potential while acid-base indicators track pH. Since both Statement I and Statement II are incorrect, the answer is Option B.