Difficulty distribution
How the classified questions are distributed by difficulty.
4questions
Not classified
4
100%
Hydrocarbons - Organic Chemistry - Chemistry Previous Year Questions
Practice Hydrocarbons - Organic Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
3Papers
3Years
4Questions
1Topics
Hydrocarbons question pattern
Every graph below is calculated only from this selection.
Questions by year
Year-wise coverage for Hydrocarbons. Each bar uses a separate theme-derived color.
Question type distribution
MCQ, numerical, multiple-select and other formats found in these papers.
4questions
Multiple Choices
4
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.
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 | 2 | View paper |
| IAT IISER 2024 | 2024 | 1 | View paper |
| IAT IISER 2023 | 2023 | 1 | View paper |
All Hydrocarbons previous year questions
Practice every matching question in batches of 20, with every available option.
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 · Hydrocarbons
IAT IISER 2024
$$\text { What are } X \text { and } Z \text { in the following sequence of reactions? }$$
A
B
C
D
2025 · Chemistry · Organic Chemistry · Hydrocarbons
IAT IISER 2025
$$\text { What are the major products formed in the following reaction sequence? }$$
A
B
C
D
2025 · Chemistry · Organic Chemistry · Hydrocarbons
IAT IISER 2025
Compound $\mathbf{I}$ undergoes hydroboration-oxidation reaction with $\left(\mathrm{BH}_3\right)_2$ followed by treatment with $\mathrm{H}_2 \mathrm{O}_2$ and aqueous NaOH to produce another compound II, which upon oxidation with $\mathrm{CrO}_3$ gives 2,3-dimethyl-cyclohexanone as the product. What is the structure of $\mathbf{I}$ ?
A
B
C
D
