JEE Main 2023ChemistryIonic EquilibriumEasyMCQ

JEE Main 2023 — Ionic Equilibrium Question with Solution

JEE Main 2023 (25 Jan Shift 2)

Question

When the hydrogen ion concentration H+changes by a factor of 1000 , the value of pH of the solution

Choose an option

Show full solutionCorrect option: B
Correct answer
Bdecreases by 3 units

Step-by-step explanation

Let the initial concentration of H+ be 1

∴ H+i = 1 ⇒ pH = 0

It changes by 1000 units

∴ H+f = 103 ⇒ pH = -3

So, pH decreases by 3 units.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Ionic Equilibrium chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2023, 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.