$\mathrm{K_a}$ for $\mathrm{CH_3COOH}$ is $1.8\times10^{-5}$ and $\mathrm{K_b}$ for $\mathrm{NH_4OH}$ is $1.8\times10^{-5}$. The pH of ammonium acetate solution will be ________.

JEE Main 2024 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 1 February 2024, Shift 1, Chemistry Q83

Question 83 of 90 in this shift, Chemistry question 23 of 30, Section B.

\mathrm{K_a}

for

\mathrm{CH_3COOH}

1.8\times10^{-5}

and

\mathrm{K_b}

for

\mathrm{NH_4OH}

1.8\times10^{-5}

. The pH of ammonium acetate solution will be ________.

Official answer

NTA final key.

Chapter: Equilibrium
Topic: pH and Buffers
Idea tested: pH of Weak Acid-Weak Base Salts

Same idea in other shifts

Asked 4× in all

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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 108 of the 174 JEE Main shifts held from 2017 to 2026.