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InterviewSolution
| 1. |
Explain why no indicator can be used for the titration between formic acid and ammonium hydroxide |
| Answer» SOLUTION :In acid-base titrations, the end POINT is detected by the use of a substance called acid-base indicator. Acid-base indicator exhibits a sharp change in its colour at the end point. The EXPERIMENTALLY determined point of completion of an acid-base TITRATION is called end point. for the titration between a weak acid and weak base, there is no sharp change in PH. Hence, no indicator can be used | |