Difficulty distribution
How the classified questions are distributed by difficulty.
26questions
Not classified
26
100%
Organic Chemistry - Chemistry Previous Year Questions
Practice Organic Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
5Papers
5Years
26Questions
1Topics
Organic Chemistry question pattern
Every graph below is calculated only from this selection.
Questions by year
Year-wise coverage for Organic Chemistry. Each bar uses a separate theme-derived color.
Question type distribution
MCQ, numerical, multiple-select and other formats found in these papers.
26questions
Multiple Choices
26
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
Open a focused page built from the same verified paper data.
General Organic Chemistry
Explore previous-paper coverage, trends and focused practice for General Organic Chemistry.
Haloalkanes And Haloarenes
Explore previous-paper coverage, trends and focused practice for Haloalkanes And Haloarenes.
Hydrocarbons
Explore previous-paper coverage, trends and focused practice for Hydrocarbons.
Isomerism
Explore previous-paper coverage, trends and focused practice for Isomerism.
Compounds Containing Nitrogen
Explore previous-paper coverage, trends and focused practice for Compounds Containing Nitrogen.
Alcohol Phenols And Ethers
Explore previous-paper coverage, trends and focused practice for Alcohol Phenols And Ethers.
Biomolecules
Explore previous-paper coverage, trends and focused practice for Biomolecules.
Carboxylic Acids And Its Derivatives
Explore previous-paper coverage, trends and focused practice for Carboxylic Acids And Its Derivatives.
Aldehyde And Ketone
Explore previous-paper coverage, trends and focused practice for Aldehyde And Ketone.
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 | 6 | 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 · Organic Chemistry · Carboxylic Acids And Its Derivatives
IAT IISER 2020
Identify the major product that forms easily and faster in the following reaction. (Tetrahydrofuran= solvent)
A
B
C
D
2022 · Chemistry · Organic Chemistry · General Organic Chemistry
IAT IISER 2022
$$\text { Which of the following molecules are aromatic? }$$
2023 · Chemistry · Organic Chemistry · Hydrocarbons
IAT IISER 2023
Which one amongst the following is the most efficient way of synthesizing $n$-propyl benzene?
A
B
C
D
2024 · Chemistry · Organic Chemistry · Isomerism
IAT IISER 2024
$$\text { What is the relationship between the structures depicted below? }$$
2025 · Chemistry · Organic Chemistry · General Organic Chemistry
IAT IISER 2025
$$\text { How many } \beta \text {-hydrogen is/are present in 2-methyl-3-phenyl-pentan-1-al? }$$
2020 · Chemistry · Organic Chemistry · Haloalkanes And Haloarenes
IAT IISER 2020
$$\text { Identify the final major product III in the following reaction sequence: }$$
A
B
C
D
