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.