Difficulty distribution
How the classified questions are distributed by difficulty.
25questions
Not classified
25
100%
Physical Chemistry - Chemistry Previous Year Questions
Practice Physical Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
5Papers
5Years
25Questions
1Topics
Physical Chemistry question pattern
Every graph below is calculated only from this selection.
Questions by year
Year-wise coverage for Physical Chemistry. Each bar uses a separate theme-derived color.
Question type distribution
MCQ, numerical, multiple-select and other formats found in these papers.
25questions
Multiple Choices
25
100%
Subject weightage
Top subjects by unique question coverage.
Most asked topics
Top topics across the included previous year papers.
Subtopic coverage
Top subtopics inside this exact selection.
Paper coverage
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Browse by subtopics
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Atomic Structure
Explore previous-paper coverage, trends and focused practice for Atomic Structure.
Electrochemistry
Explore previous-paper coverage, trends and focused practice for Electrochemistry.
Thermodynamics
Explore previous-paper coverage, trends and focused practice for Thermodynamics.
Chemical Kinetics
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Liquid Solution
Explore previous-paper coverage, trends and focused practice for Liquid Solution.
States Of Matter
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Ionic Equilibrum
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Solid State
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Chemical Equilibrium
Explore previous-paper coverage, trends and focused practice for Chemical Equilibrium.
Surface Chemistry
Explore previous-paper coverage, trends and focused practice for Surface Chemistry.
Included previous year papers
Newest papers appear first. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| IAT IISER 2025 | 2025 | 5 | View paper |
| IAT IISER 2024 | 2024 | 5 | View paper |
| IAT IISER 2023 | 2023 | 5 | View paper |
| IAT IISER 2022 | 2022 | 5 | View paper |
| IAT IISER 2020 | 2020 | 5 | View paper |
Sample previous year questions
A varied preview from the papers represented in this selection, with every available option.
2020 · Chemistry · Physical Chemistry · Ionic Equilibrum
IAT IISER 2020
The molar conductivity of 0.00241 M acetic acid is $32.87 \mathrm{Scm}^2 \mathrm{~mol}^{-1}$. If the limiting molar conductivity at 298 K is $390.5 \mathrm{Scm}^2 \mathrm{~mol}^{-1}$, what is the dissociation constant ( $\mathrm{mol} \mathrm{L}^{-1}$ )?
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2022 · Chemistry · Physical Chemistry · Liquid Solution
IAT IISER 2022
2 g of naphthoic acid (molecular weight $=172 \mathrm{~g} \mathrm{~mol}^{-} 1$ ) dissolved in 20 mL of benzene shows a freezing point depression of 2 K . For benzene, the freezing point depression constant, $K_f=5$ $\mathrm{K} \mathrm{kg} \mathrm{mol}{ }^{-1}$ and the density is $0.88 \mathrm{~g} \mathrm{~mL}^{-1}$. What is the magnitude of the van't Hoff factor?
2023 · Chemistry · Physical Chemistry · Thermodynamics
IAT IISER 2023
Consider the following reaction: $\mathrm{CH}_4(\mathrm{~g}) \rightarrow \mathrm{C}(\mathrm{g})+4 \mathrm{H}(\mathrm{g}) ; \Delta_a H^0=1665 \mathrm{kJmol}^{-} 1$ Which of the statements is FALSE?
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2024 · Chemistry · Physical Chemistry · Atomic Structure
IAT IISER 2024
The minimum energy needed to remove an electron from a metal corresponds to a wavelength of 500 nm . What is the total kinetic energy of all the photoelectrons ejected per second when the entire radiation from a 100 Watt bulb with a wavelength of 300 nm falls on the surface of the metal? [Planck's constant $=6.6 \times 10^{34} \mathrm{Js}$; speed of light $=3 \times 10^8 \mathrm{~ms}^{-1}$ ]
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2025 · Chemistry · Physical Chemistry · States Of Matter
IAT IISER 2025
The work done when one mole of an ideal gas expands at constant temperature $T$ from volume $V$ to $2 V$ (in two equal steps of volume in a linear fashion) is $\frac{7}{12} R T$. How much more work would be done by the gas if it expands in three equal steps?
[ $R$ is the universal gas constant]
2020 · Chemistry · Physical Chemistry · Atomic Structure
IAT IISER 2020
The total number of nodes for a given principal quantum number $n$, and azimuthal quantum number $\ell$, are
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