Chemistry - Ionic Equilibrium Question with Solution | TestHub

ChemistryIonic EquilibriumTitration Based ProblemsHard2 minPYQ_2022
ChemistryHardmatching list

A compound 'X' is a weak acid and it exhibits colour change atpHclose to the equivalence point during neutralization ofNaOHwithCH3COOH. Compound 'X' exists in ionized form in basic medium. The compound 'X' is

Options:

Answer:
C
Solution:

phenolphthalein, (C20H14O4), an organic compound of the phthalein family that is widely employed as an acid-base indicator. As an indicator of a solution's pH, phenolphthalein is colourless below pH 8.5 and attains a pink to deep red hue above pH 9.0.

It is used for the titration of weak acid and strong base. Phenolphthalein is weak acid give colour in basic medium. It exist in ionized form in basic medium.

Stream:JEESubject:ChemistryTopic:Ionic EquilibriumSubtopic:Titration Based Problems
2mℹ️ Source: PYQ_2022

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