JEE Main 2022ChemistryIonic EquilibriumEasyMCQ

JEE Main 2022 — Ionic Equilibrium Question with Solution

JEE Main 2022 (25 Jul Shift 1)

Question

20 mL of 0.1M NH4OH is mixed with 40 mL of 0.05 M HCl. The pH of the mixture is nearest to:
(Given: KbNH4OH=1×10-5, log2=0.30, log3=0.48, log5=0.69, log7=0.84, log11=1.04)

Choose an option

Show full solutionCorrect option: C
Correct answer
C5.2

Step-by-step explanation

            NH4OH+HCl→NH4Cl+H2Ommole  2          2after reaction -    -           2 milimoles

NH4+=2 mmole60 ml=130M

pH=pKw-pKb-logC2=14-5+1.482=5.24

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About this question

This is a previous-year question from JEE Main 2022, 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.