Maharashtra Board Class 10 Science and Technology Part 1 Important Topics 2027
Every topic ranked by how often and how recently it was asked in 8 past board papers (2022–2026).
Top 10 most important topics
| # | Topic | Chapter | Asked in | Importance |
|---|---|---|---|---|
| 1 | Types of chemical reactions | Chemical Reactions and Equations | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★★★ |
| 2 | Modern periodic law and table (periods, groups, s/p/d/f blocks) | Periodic Classification of Elements | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★★☆ |
| 3 | Hydrocarbons (alkanes, alkenes, alkynes) | Carbon Compounds | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| 4 | Applications (rainbow, mirage, twinkling of stars) | Refraction of Light | Board 2024Board 2025Board 2026 | ★★★☆☆ |
| 5 | Periodic trends (atomic radius, valency, metallic / non-metallic character) | Periodic Classification of Elements | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| 6 | Electric motor (principle and working) | Effects of Electric Current | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| 7 | Human eye and defects of vision | Lenses | Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| 8 | Acceleration due to gravity (g) and its variation | Gravitation | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| 9 | Refraction and refractive index | Refraction of Light | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| 10 | Heating effect of current (Joule's law, power and energy consumed) | Effects of Electric Current | Board 2024Board 2025Board 2026 | ★★☆☆☆ |
Chapter-wise important topics
Gravitation · Physics: Force, Motion & Energy
| Acceleration due to gravity (g) and its variation asked 8× | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| Escape velocity asked 5× | Board 2023Board 2024Board 2025Board 2026 | ★★☆☆☆ |
| Satellite motion and period asked 3× | Board 2024Board 2026 | ★☆☆☆☆ |
| Free fall and weightlessness asked 2× | Board 2024Board 2025 | ★☆☆☆☆ |
| Kepler's laws of planetary motion asked 2× | Board 2022Board 2026 | ★☆☆☆☆ |
| Newton's universal law of gravitation asked 1× | Board 2024 | ★☆☆☆☆ |
Periodic Classification of Elements · Chemistry: Matter & Reactions
| Modern periodic law and table (periods, groups, s/p/d/f blocks) asked 12× | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★★☆ |
| Periodic trends (atomic radius, valency, metallic / non-metallic character) asked 9× | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| Mendeleev's periodic table and law asked 4× | Board 2022Board 2024Board 2026 | ★☆☆☆☆ |
| Position of elements, metalloids and their identification asked 1× | Board 2026 | ★☆☆☆☆ |
Chemical Reactions and Equations · Chemistry: Matter & Reactions
| Types of chemical reactions asked 16× | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★★★ |
| Oxidation and reduction (redox reactions) asked 4× | Board 2024Board 2025Board 2026 | ★☆☆☆☆ |
| Balancing chemical equations asked 3× | Board 2024Board 2025Board 2026 | ★☆☆☆☆ |
| Corrosion and rancidity asked 3× | Board 2022Board 2023Board 2024 | ★☆☆☆☆ |
| Rate of chemical reaction and factors affecting it asked 2× | Board 2024Board 2026 | ★☆☆☆☆ |
Effects of Electric Current · Physics: Electricity & Light
| Electric motor (principle and working) asked 9× | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| Heating effect of current (Joule's law, power and energy consumed) asked 7× | Board 2024Board 2025Board 2026 | ★★☆☆☆ |
| Electric generator (AC / DC) asked 5× | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★☆☆☆☆ |
| Ohm's law and resistance asked 3× | Board 2023Board 2025Board 2026 | ★☆☆☆☆ |
| Domestic electric circuits and safety asked 3× | Board 2023Board 2025 | ★☆☆☆☆ |
| Electromagnetic induction asked 1× | Board 2024 | ★☆☆☆☆ |
Heat · Physics: Force, Motion & Energy
| Anomalous behaviour of water asked 5× | Board 2022Board 2024Board 2025Board 2026 | ★★☆☆☆ |
| Principle of heat exchange / calorimetry asked 5× | Board 2022Board 2024Board 2025Board 2026 | ★★☆☆☆ |
| Specific heat capacity asked 4× | Board 2023Board 2024Board 2025 | ★☆☆☆☆ |
| Regelation, dew point and humidity asked 3× | Board 2023Board 2024Board 2026 | ★☆☆☆☆ |
| Latent heat (fusion and vaporisation) asked 1× | Board 2024 | ★☆☆☆☆ |
Refraction of Light · Physics: Electricity & Light
| Applications (rainbow, mirage, twinkling of stars) asked 9× | Board 2024Board 2025Board 2026 | ★★★☆☆ |
| Refraction and refractive index asked 9× | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| Laws of refraction asked 5× | Board 2022Board 2023Board 2024Board 2026 | ★★☆☆☆ |
| Dispersion of light asked 5× | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★☆☆☆☆ |
Lenses · Physics: Electricity & Light
| Human eye and defects of vision asked 8× | Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| Image formation by convex and concave lenses asked 6× | Board 2022Board 2024Board 2025Board 2026 | ★★☆☆☆ |
| Power of a lens asked 4× | Board 2022Board 2023Board 2024Board 2026 | ★☆☆☆☆ |
| Lens formula and magnification asked 1× | Board 2025 | ★☆☆☆☆ |
| Types of lenses and related terms asked 1× | Board 2024 | ★☆☆☆☆ |
Metallurgy · Applied: Metallurgy & Space
| Extraction of metals (roasting, calcination, reduction) asked 4× | Board 2022Board 2024Board 2026 | ★☆☆☆☆ |
| Corrosion and its prevention asked 4× | Board 2022Board 2024Board 2025 | ★☆☆☆☆ |
| Alloys and their properties asked 2× | Board 2024Board 2026 | ★☆☆☆☆ |
| Reactivity series of metals asked 2× | Board 2024Board 2025 | ★☆☆☆☆ |
| Extraction of aluminium (electrolysis of alumina) asked 2× | Board 2022Board 2026 | ★☆☆☆☆ |
Carbon Compounds · Chemistry: Matter & Reactions
| Hydrocarbons (alkanes, alkenes, alkynes) asked 11× | Board 2022Board 2023Board 2024Board 2025Board 2026 | ★★★☆☆ |
| Properties and reactions (ethanol, ethanoic acid) asked 4× | Board 2024Board 2025Board 2026 | ★☆☆☆☆ |
| Covalent bonding in carbon asked 3× | Board 2023Board 2025 | ★☆☆☆☆ |
| Functional groups and homologous series asked 2× | Board 2024Board 2026 | ★☆☆☆☆ |
| IUPAC nomenclature asked 2× | Board 2022Board 2023 | ★☆☆☆☆ |
| Macromolecules and polymers asked 1× | Board 2026 | ★☆☆☆☆ |
Space Missions · Applied: Metallurgy & Space
| Orbits (geostationary, polar) asked 4× | Board 2023Board 2025Board 2026 | ★☆☆☆☆ |
| Artificial satellites and their types asked 4× | Board 2023Board 2024Board 2025Board 2026 | ★☆☆☆☆ |
| Launch vehicles and stages asked 3× | Board 2022Board 2024Board 2025 | ★☆☆☆☆ |
| ISRO missions and satellites asked 3× | Board 2022Board 2023Board 2024 | ★☆☆☆☆ |
| Applications and benefits of satellites asked 2× | Board 2022Board 2025 | ★☆☆☆☆ |
Importance = how often a topic was asked × how recent, with extra weight for the latest official sample paper.