JEE Main 202331 JanuaryEvening Shift
- Exam
- JEE Main
- Year
- 2023
- Date
- 31 January
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Ionic Equilibrium
JEE Main 2023 · 31 January · Evening Shift · Chemistry · Ionic Equilibrium
Incorrect statement for the use of indicator in acid-base titration...
Incorrect statement for the use of indicator in acid-base titration is:
Options
- AMethyl orange may be used for a weak acid vs weak bas titration.
- BPhenolphthalein may be used for a strong acid vs strong base titration.
- CMethyl orange is a suitable indicator for a strong acid vs weak base titration.
- DPhenolphthalein is a suitable indicator for a weak acid vs strong base titration.
Correct answer
A. Methyl orange may be used for a weak acid vs weak bas titration.
Step-by-step solution
Methyl orange and phenolphthalein indicators work with the change in pH and are termed as acid–base indicators.
Methy lorange is sutable indicator for strong acid vs strong base and strong acid vs weak base titration.
Phenolphthalein is sutable indicator for strong acid vs strong base and weak acid vs strong base titration.
There is no suitable indicator that can be used in the titration of weak acid and weak base. So, the correct option is A.