CBSE Class 12 Chemistry

CBSE Class 12 Chemistry: 50 Topics You Must Master for a 95+ Score!

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CBSE Class 12 Chemistry

The Ultimate 50 Topic Masterlist

2025-26 Syllabus
Check Other Subjects: ➜ Class 12 Physics ➜ Class 10 Science

Physical Chemistry (3 Chapters)

Weightage: 23 Marks | Focus: Numericals & Graphs

  1. Solutions: Henry’s Law and Raoult’s Law deviations. Graph
  2. Colligative Properties: Numericals on Elevation in B.P. and Depression in F.P. Numerical
  3. Van’t Hoff Factor: Calculation of association vs dissociation degree.
  4. Electrochemistry: Nernst Equation numericals for calculating \(E_{cell}\). Guaranteed
  5. Conductance: Variation of \(\kappa\) and \(\Lambda_m\) with dilution.
  6. Batteries: Fuel Cell (H2-O2) reactions and Lead Storage equations.
  7. Chemical Kinetics: Integrated Rate Equations for Zero & First Order. Derivation
  8. Arrhenius Equation: Activation energy plots (\(\ln k\) vs \(1/T\)). Graph

Inorganic Chemistry (2 Chapters)

Weightage: 14 Marks | Focus: Reasoning & Structures

  1. d-Block: Catalytic properties and variable oxidation states.
  2. Magnetic Nature: Calculation of spin-only magnetic moment:
    \[\mu = \sqrt{n(n+2)} \text{ BM}\]
  3. Lanthanoid Contraction: Impact on radii of Zr/Hf and the 5d series.
  4. VBT: Hybridization and geometry of \([Co(NH_3)_6]^{3+}\) and \([Ni(CN)_4]^{2-}\). Must Do
  5. CFT: Crystal Field Splitting in Octahedral vs Tetrahedral complexes.
  6. Isomerism: Linkage and Ionization isomers in coordination compounds.

Organic Chemistry (5 Chapters)

Weightage: 33 Marks | The Highest Scoring Section

  1. Mechanism: \(S_N1\) vs \(S_N2\) reactivity and stereochemistry. Mechanism
  2. Alcohols: Mechanism of Dehydration of ethanol to ethene. Mechanism
  3. Name Reactions: Reimer-Tiemann, Kolbe’s, and Aldol Condensation. High Yield
  4. Carbonyls: Cannizzaro and Wolff-Kishner Reduction mechanisms.
  5. Amines: Basic strength order in aqueous vs gas phase. Reasoning
  6. Distinction Tests: Lucas Test and Hinsberg Test.
  7. Biomolecules: Structure of Glucose (Anomers) and Peptide bonds.
  8. Nucleic Acids: DNA vs RNA structure and linkages.

Asterisk Classes: Analyst Strategy

  • The “Roadmap” Conversion: Master the sequence from Alkanes \(\to\) Haloalkanes \(\to\) Alcohols \(\to\) Acids. It solves 60% of all conversion problems.
  • Case Study Strategy: Focus on Biomolecules and Electrochemistry. These are the most common chapters for 4-mark case study questions.
  • Reaction Presentation: Always write the reagents on the arrow and mention the names of products in major reactions for full credit.
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