Given below are two statements : Statement I : Sodium dichromate and potassium dichromate are classified as primary standards in titrimetric analysis. Statement II : Phenolphthalein is a weak base, therefore it dissociates in acidic medium. In the light of the above statements, choose the correct answer from the options given below

Both Statement I and Statement II are false

Both Statement I and Statement II are true

Statement I is true but Statement II is false

Statement I is false but Statement II is true

The incorrect statement for the use of indicators in acid-base titration is :

Methyl orange may be used for a weak acid vs weak base titration.

Phenolphthalein is a suitable indicator for a weak acid vs strong base titration.

Methyl orange is a suitable indicator for a strong acid vs weak base titration.

Phenolphthalein may be used for a strong acid vs strong base titration.

Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : The amphoteric nature of water is explained by using Lewis acid/base concept. Reason R : Water acts as an acid with NH 3 and as a base with H 2 S. In the light of the above statements choose the correct answer from the options given below :

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is NOT the correct explanation of A.

Ionic Equilibrium — JEE Main Previous Year Questions

121 solved PYQs · 2017–2026 · Chemistry

Solved PYQs: 121
Years covered: 2017–2026
Avg / year: ~12
Subject: Chemistry

How many JEE Main questions come from Ionic Equilibrium?

Ionic Equilibrium has contributed 121 questions to Joint Entrance Examination (Main) papers between 2017 and 2026 — an average of about 12 questions a year. That count is measured from EByAi’s bank of 55,289 JEE Main questions, not estimated from a syllabus. Every one of the 121 questions carries a written, step-by-step solution, and each is tagged to Ionic Equilibrium within Chemistry, so you can drill this chapter across every year at once instead of hunting through paper PDFs. Practising a chapter’s full PYQ history is the fastest way to learn the patterns examiners reuse.

Sample Ionic Equilibrium questions from real JEE Main papers

These are 5 real questions from the bank — exactly as asked, with the answer one tap away. All 121 Ionic Equilibrium questions (with full written solutions) are available in practice.

Question 1 · JEE Main 2026
Given below are two statements : Statement I : Sodium dichromate and potassium dichromate are classified as primary standards in titrimetric analysis. Statement II : Phenolphthalein is a weak base, therefore it dissociates in acidic medium. In the light of the above statements, choose the correct answer from the options given below
1. (A) $Both Statement I and Statement II are true$
2. (B) $Both Statement I and Statement II are false$
3. (C) $Statement I is true but Statement II is false$
4. (D) $Statement I is false but Statement II is true$
Show answerAnswer
$Answer: (B) Both Statement I and Statement II are false$
Question 2 · JEE Main 2023
The incorrect statement for the use of indicators in acid-base titration is :
1. (A) $Phenolphthalein is a suitable indicator for a weak acid vs strong base titration.$
2. (B) $Methyl orange may be used for a weak acid vs weak base titration.$
3. (C) $Methyl orange is a suitable indicator for a strong acid vs weak base titration.$
4. (D) $Phenolphthalein may be used for a strong acid vs strong base titration.$
Show answerAnswer
$Answer: (B) Methyl orange may be used for a weak acid vs weak base titration.$
Question 3 · JEE Main 2023
When the hydrogen ion concentration [H^+] changes by a factor of 1000, the value of pH of the solution __________
1. (A) $decreases by 2 units$
2. (B) $increases by 2 units$
3. (C) $decreases by 3 units$
4. (D) $increases by 1000 units$
Show answerAnswer
$Answer: (C) decreases by 3 units$
Question 4 · JEE Main 2022
The solubility of AgCl will be maximum in which of the following?
1. (A) $0.01 M KCl$
2. (B) $0.01 M HCl$
3. (C) $0.01 M AgNO_{3}$
4. (D) $Deionised water$
Show answerAnswer
$Answer: (D) Deionised water$
Question 5 · JEE Main 2022
Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : The amphoteric nature of water is explained by using Lewis acid/base concept. Reason R : Water acts as an acid with NH 3 and as a base with H 2 S. In the light of the above statements choose the correct answer from the options given below :
1. (A) $Both A and R are true and R is the correct explanation of A.$
2. (B) $Both A and R are true but R is NOT the correct explanation of A.$
3. (C) $A is true but R is false.$
4. (D) $A is false but R is true.$
Show answerAnswer
$Answer: (D) A is false but R is true.$

Ionic Equilibrium questions by year

Year	Questions	Share of chapter questions
2026	14
2025	16
2024	9
2023	15
2022	17
2021	15
2020	13
2019	11
2018	8
2017	3

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FAQs

How many JEE Main questions have been asked from Ionic Equilibrium?

EByAi's bank holds 121 real JEE Main questions from Ionic Equilibrium, asked between 2017 and 2026 — about 12 per year on average. Every count is measured from actual papers, not estimated.

Is Ionic Equilibrium important for JEE Main?

121 questions over 10 papers make Ionic Equilibrium a moderate-weightage chapter in JEE Main Chemistry. The year-wise table above shows exactly how often it appears.

Can I solve Ionic Equilibrium PYQs online for free?

Yes. EByAi lets you solve JEE Main past-year questions in the browser with written solutions — free daily practice, no card needed.

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