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Question

The indicator used in titrating weak acid (e.g. oxalic acid) with a strong base (e.g. caustic soda) solution is


Your Answer
A
methyl orange
Your Answer
B
methyl red
Your Answer
C
fluorescein
Correct Answer
D
phenolphthalein

Solution

The correct option is D phenolphthalein
Phenolphthalein is chosen because it changes colour at the pH range of 8.3 - 10.0

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