JEE Main 2013 — Ionic Equilibrium Question with Solution
JEE Main 2013 (25 Apr Online)
Question
What would be the of a solution obtained by mixing of acetic acid and of sodium acetate and making the volume equal to ?
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
$\begin{aligned}
\mathrm{pH} & =\mathrm{pK}_a+\log \frac{[\text { salt }]}{[\text { acid }]} \\
& =4.76+\log \frac{\frac{7.5}{500}}{\frac{5}{500}}=4.7+\log 1.5=4.87
\end{aligned}$
Hence correct answer is
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This is a previous-year question from JEE Main 2013, 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.