The indicator most suitable for this reaction should…
How to determine limiting reactant
The indicator most suitable for this reaction should have a pH equal to
- A. 5
- B. 7
- C. 3
- D. 9
We have a strong base reacting with an equally strong acid, so, the pH value of the resulting product will be approximately 7 (the neutral pH value). The PH of the most suitable indicator should be neither acidic nor basic, it should be neutral.
Now for the right answer to the above question:
- Option A is incorrect. ordinarily acid-base indicators are not expected to be acidic in themselves.
- Option B is correct. Normal indicators are approximately neutral, and have a PH value very close to 7.
- C is incorrect. acid-base indicators are not expected to be acidic in themselves.
- D is not the correct answer. Neither are they expected to be basic.
You may please note these/this:
- All known acid-base indicators are either weak organic acids or weak organic bases whose PH values are in themselves close to 7.
- If the PH value of an indicator is strongly acidic, it will interfere with the neutral solution resulting to an acidic mixture.
- If the PH value of the indicator is strongly basic, it will also interfere with the neutral solution to tilt it towards becoming basic.
Use the questions and answers section to express and contribute your views.
You can also share this page with friends.
/culled from 2019 JAMB-UTME Chemistry question 34/