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Incorrect statement for the use of indicator in acid-base titration is:
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Verified Answer
The correct answer is:
Methyl orange may be used for a weak acid vs weak bas titration.
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.
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