JEE Main 2007 — Ionic Equilibrium Question with Solution
From: AIEEE 2007
Question
The pKa of a weak acid (HA) is 4.5. The pOH of an aqueous buffered solution of HA in which 50% of
the acid is ionized is :
Choose an option
Show full solutionCorrect option: D
Correct answer
D9.5
Step-by-step explanation
For acidic buffer
or
Given and acid is ionised.
(when acid is ionised)
or
Given and acid is ionised.
(when acid is ionised)
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This is a previous-year question from JEE Main 2007, covering the Ionic Equilibrium chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.