Class 12 Chemistry: Score Full Marks with Proven High-Weight Board Strategy

Many students hear that pre-board papers are intentionally tough or that scoring well in boards requires studying for 10–12 hours daily. These ideas often create unnecessary pressure. In reality, scoring full marks—especially in Chemistry—depends on understanding recurring patterns in the syllabus. The same strategy shared with students in previous years helped many of them because their pre-board questions came directly from the topics discussed. The method works, but it still requires consistent study of the right areas.

The Chemistry board paper is always framed from the same syllabus. To adjust difficulty, examiners choose predictable topics that can be twisted but not avoided. This is why certain chapters repeatedly generate questions. Once you understand these patterns, preparation becomes far more focused.

Key High-Weight Topics

• Haloalkanes & Haloarenes: Nucleophilic substitution, SOCl₂/KCN/AgCN reactions, alcoholic vs aqueous KOH, Finkelstein and Swarts reactions, Markovnikov vs anti-Markovnikov addition, reactivity of aryl halides.

• Alcohols, Phenols & Ethers: Hydration, Grignard reagent preparations, dehydration, oxidation of alcohols, acidic nature, Reimer–Tiemann, Kolbe, bromination of phenol, Williamson synthesis.

• Aldehydes, Ketones & Acids: Reductive ozonolysis, hydration of alkynes, Rosenmund, Stephen, Etard, Gattermann, Clemmensen, definitions of functional derivatives, and key tests like iodoform, Tollen’s and Fehling’s.

Even though some chapters look long, only a tight cluster of topics dominates the boards every year. This pattern continues in Amines, where basicity, Hoffman bromamide, Gabriel phthalimide, Hinsberg test, and behaviour of different amines are repeatedly tested. Biomolecules also follows a similar trend, with questions focusing on reducing vs non-reducing sugars, fibrous vs globular proteins, essential amino acids, and differences between DNA and RNA.

Physical Chemistry adds numerical weightage. Concentration terms, Henry’s law, colligative properties, van’t Hoff factor, ideal vs non-ideal solutions and osmosis appear regularly. In Electrochemistry, students must focus on galvanic vs electrolytic cells, Nernst equation, conductivity, molar conductance, effect of dilution and Kohlrausch’s law. Battery-based questions are almost guaranteed.

Also important every year:

• Chemical Kinetics: Rate law, order vs molecularity, numericals from data tables, zero- and first-order derivations, rate constant and half-life calculations, Arrhenius graphs.

• Inorganic Chemistry: Nomenclature, isomerism, magnetic moment, paramagnetic vs diamagnetic behaviour, VBT-based hybridization, CFSE stability. d- and f-block trends such as electronic configuration, ionization enthalpy and lanthanoid contraction remain reliable questions.

All these areas show that scoring full marks doesn’t require reading the entire textbook line by line. These selected topics form the backbone of most board and pre-board papers. Completing them along with the last five years’ PYQs brings students extremely close to a perfect score.

The same structured approach will be followed in the Board Booster 2026 batch starting from 24 November. The batch includes notes, DPPs, video solutions, tests, doubt support and handwritten study material—fully aligned with this exact strategy that has already helped students score exceptionally well. With focused revision and proper practice, scoring 70/70 in Chemistry is completely achievable.