JEE Main 2023 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 13 April 2023, Shift 2, Chemistry Q85

Question 85 of 90 in this shift, Chemistry question 25 of 30, Section B.

20 mL of 0.1 M NaOH is added to 50 mL of 0.1 M acetic acid solution. The pH of the resulting solution is ______

\times10^{-2}

(Nearest integer) Given :

\mathrm{p}K_a(\mathrm{CH_3COOH})=4.76

\log 2=0.30

\log 3=0.48

Official answer

458

NTA final key.

Chapter: Equilibrium
Topic: pH and Buffers
Idea tested: Buffer Formation via Partial Neutralization

Same topic in other shifts

All pH and Buffers questions

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.