Question

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

• A. Both Statement I and Statement II are correct
• B. Both Statement I and Statement II are incorrect
• C. Statement I is correct but Statement II is incorrect
• D. Statement I is incorrect but Statement II is correct

Hint:

Understand the role of indicators in titrations. Acid-base indicators respond to pH changes, while redox indicators respond to oxidation potential changes

Answer 1

The Correct Option is B

Statement I:

Redox titration indicators, such as starch or ferroin, are sensitive to changes in oxidation potential, not pH. Conclusion: Statement I is incorrect.

Statement II:

In acid-base titration, indicators like phenolphthalein and methyl orange respond to changes in pH, not oxidation potential. Conclusion: Statement II is also incorrect.

Since both Statement I and Statement II are incorrect, the correct answer is option (2).