Difficulty distribution
How the classified questions are distributed by difficulty.
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Practice Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
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Year-wise coverage for Chemistry. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
Question coverage for the most populated papers. Every active PYP paper remains listed below.
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| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| KCET 2026 | 2026 | 60 | View paper |
| KCET 2025 | 2025 | 60 | View paper |
| KCET 2024 | 2024 | 60 | View paper |
| KCET 2023 | 2023 | 60 | View paper |
| KCET 2022 | 2022 | 60 | View paper |
| KCET 2021 | 2021 | 60 | View paper |
| KCET 2020 | 2020 | 60 | View paper |
| KCET 2019 | 2019 | 60 | View paper |
| KCET 2018 | 2018 | 60 | View paper |
| KCET 2017 | 2017 | 60 | View paper |
A varied preview from the papers represented in this selection, with every available option.
By passing electric current, $\mathrm{NaClO}_3$ is converted in to $\mathrm{NaClO}_4$ according to the following equation
$$\mathrm{NaClO}_3+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{NaClO}_4+\mathrm{H}_2$$
How many moles of $\mathrm{NaClO}_4$ will be formed when three Faradays of charges is passed through $\mathrm{NaClO}_3$ ?
The number of \(\pi\)-bonds and \(\sigma\)-bonds present in naphthalene are respectively
A metal exists as an oxide with formula \(M_{0.96}\) O. Metal, \(M\) can exist as \(M^{2+}\) and \(M^{3+}\) in its oxide \(M_{0.96} \mathrm{O}\). The percentage of \(\mathrm{M}^{3+}\) in the oxide is nearly
The number of angular and radial nodes in \(3 p\) orbital respectively are
Vacant space in body centered cubic lattice unit cell is about