Analytical Chemistry Question 252
Question: The indicator used in titrating weak acid (e.g. oxalic acid) with a strong base (e.g. caustic soda) solution is
[IIT-JEE 1985; CPMT 1990; MNR 1980; NCERT 1973, 77; MP PMT 1994]
Options:
A) Methyl orange
B) Methyl red
C) Fluorescein
D) Phenolphthalein
Show Answer
Answer:
Correct Answer: D
Solution:
Phenolphthalein is used as it is colourless and becomes pink only in basic medium.