Which indicator is used in the titration of sodium hydroxide against oxalic acid and what is the colour change at the end point?

Phenolphthalein, colourless to pink

Phenolphthalein, pink to yellow

Alkaline KMnO4, colourless to pink

Methyl orange, yellow to pinkish red colour

Ionic Equilibrum — NEET Previous Year Questions

22 solved PYQs · 2016–2026 · Chemistry

Solved PYQs: 22
Years covered: 2016–2026
Avg / year: ~2
Subject: Chemistry

How many NEET questions come from Ionic Equilibrum?

Ionic Equilibrum has contributed 22 questions to National Eligibility cum Entrance Test (UG) papers between 2016 and 2026 — an average of about 2 questions a year. That count is measured from EByAi’s bank of 46,150 NEET questions, not estimated from a syllabus. Every one of the 22 questions carries a written, step-by-step solution, and each is tagged to Ionic Equilibrum 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 Equilibrum questions from real NEET papers

These are 5 real questions from the bank — exactly as asked, with the answer one tap away. All 22 Ionic Equilibrum questions (with full written solutions) are available in practice.

Question 1 · NEET 2026
Phenolphthalein is used as an indicator for the titration of sodium hydroxide solution against a standard solution of oxalic acid. The colour change that is observed at an alkaline pH close to the equivalence point during this titration is:
1. (A) $pinkish red to yellow$
2. (B) $yellow to pinkish red$
3. (C) $pink to colourless$
4. (D) $colourless to pink$
Show answerAnswer
$Answer: (D) colourless to pink$
Question 2 · NEET 2024
Which indicator is used in the titration of sodium hydroxide against oxalic acid and what is the colour change at the end point?
1. (A) $Phenolphthalein, pink to yellow$
2. (B) $Alkaline KMnO4, colourless to pink$
3. (C) $Phenolphthalein, colourless to pink$
4. (D) $Methyl orange, yellow to pinkish red colour$
Show answerAnswer
$Answer: (C) Phenolphthalein, colourless to pink$
Question 3 · NEET 2024
The ratio of solubility of AgCl in 0.1 M KCl solution to the solubility of AgCl in water is:

(Given : Solubility product of AgCl = 10^-10)
1. (A) $10 -4$
2. (B) $10 -6$
3. (C) $10 -9$
4. (D) $10 -5$
Show answerAnswer
$Answer: (A) 10 -4$
Question 4 · NEET 2022
0.01 M acetic acid solution is 1% ionised, then pH of this acetic acid solution is :
1. (A) $1$
2. (B) $3$
3. (C) $2$
4. (D) $4$
Show answerAnswer
$Answer: (D) 4$
Question 5 · NEET 2022
The pH of the solution containing 50 mL each of 0.10 M sodium acetate and 0.01 M acetic acid is [Given pKa of CH3COOH = 4.57]
1. (A) $5.57$
2. (B) $3.57$
3. (C) $4.57$
4. (D) $2.57$
Show answerAnswer
$Answer: (A) 5.57$

Ionic Equilibrum questions by year

Year	Questions	Share of chapter questions
2026	3
2025	2
2024	2
2023	1
2022	2
2021	1
2020	1
2019	3
2018	2
2017	1
2016	4

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FAQs

How many NEET questions have been asked from Ionic Equilibrum?

EByAi's bank holds 22 real NEET questions from Ionic Equilibrum, asked between 2016 and 2026 — about 2 per year on average. Every count is measured from actual papers, not estimated.

Is Ionic Equilibrum important for NEET?

22 questions over 11 papers make Ionic Equilibrum a steady-weightage chapter in NEET Chemistry. The year-wise table above shows exactly how often it appears.

Can I solve Ionic Equilibrum PYQs online for free?

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

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