CSCA Chemistry Syllabus 2026/2027: 48-Question Exam Topics, Reaction Matrix & Prep Materials

The csca chemistry standardized examination evaluates foundational competencies in chemical principles for international candidates entering MBBS, biotechnology, materials science, and chemical engineering programs in China. This comprehensive guide outlines the official csca chemistry syllabus, topic distributions across physical, inorganic, and organic chemistry, question formats, and high-impact csca prep strategies utilizing official csca resources and csca materials.

1. Basic Chemical Concepts and Calculations (化学基本概念及计算)

This foundational module of the csca chemistry syllabus tests quantitative stoichiometry, states of matter, and fundamental chemical language.

Classification & State Changes of Matter

Pure substances vs. mixtures, elements vs. compounds; physical states of matter (solid, liquid, gas, plasma); physical changes vs. chemical changes; melting, vaporization, sublimation, and enthalpy changes of phase transitions.

Chemical Notation & Equation Writing

Chemical symbols, chemical formulas, valence states and oxidation numbers; IUPAC nomenclature for common inorganic binary and ternary compounds; chemical equation balancing according to the Law of Conservation of Mass; ionic equations and net ionic representations.

Solution Concentration & pH Calculations

Mass percent concentration (w = [m_solute / m_solution] × 100%), molar concentration (c = n / V), solution preparation and volumetric flask procedures, dilution calculations (c₁V₁ = c₂V₂); ionic product of water (K_w = [H⁺][OH⁻] = 1.0 × 10⁻¹⁴ at 25°C), pH definition (pH = −log[H⁺]), and pH calculations for strong acids, strong bases, and diluted aqueous solutions.

Calculations Involving the Amount of Substance

The mole concept (n), Avogadro's constant (N_A ≈ 6.02 × 10²³ mol⁻¹); molar mass (M = m / n); molar volume of ideal gas at standard temperature and pressure (V_m ≈ 22.4 L/mol at STP); limiting reagent calculations, theoretical yield, and percentage yield.

Application of the Ideal Gas Law

Ideal gas state equation (pV = nRT); relationships between pressure (p), volume (V), temperature (T), and gas density (ρ = pM / RT); gas mixture partial pressures (Dalton's Law of Partial Pressures).

2. Properties and Reactions of Substances (物质性质与反应)

This module evaluates an applicant's descriptive knowledge of inorganic chemical families, fundamental organic functional groups, and oxidation-reduction reaction principles.

Properties of Common Inorganic Substances

Elemental metals (alkali metals Na/K, alkaline earth metals Mg/Ca, Al, Fe, Cu) and non-metals (H₂, O₂, N₂, Cl₂, C, S, Si); properties and characteristic reactions of basic oxides, acidic oxides, amphoteric oxides (Al₂O₃), common acids (HCl, H₂SO₄, HNO₃), alkalis (NaOH, Ca(OH)₂, NH₃·H₂O), and salts (carbonates, sulfates, chlorides, nitrates).

Basic Organic Compounds (Hydrocarbons & Derivatives)

Methane, alkanes (homologous series, substitution reactions); ethylene, alkenes (double bonds, addition reactions, polymerization); acetylene, alkynes; benzene and aromatic hydrocarbons; functional derivatives: ethanol and alcohols, acetic acid and carboxylic acids, ethyl acetate and esters; basic properties of carbohydrates, proteins, and lipids.

Identification of Redox Reactions

Concept of oxidation state changes; oxidizing agents, reducing agents, oxidation products, reduction products; electron transfer counting and balance of redox reactions; comparative oxidizing and reducing strengths of common chemicals.

Ionic Reactions & Testing Methods

Conditions for ionic reactions in aqueous solutions (formation of precipitates, gases, or weak electrolytes); characteristic qualitative test methods and observation phenomena for common cations (Fe³⁺, Fe²⁺, Cu²⁺, Al³⁺, NH₄⁺, Na⁺, K⁺ flame tests) and anions (Cl⁻, SO₄²⁻, CO₃²⁻, NO₃⁻).

3. Chemical Theories and Laws (化学理论与规律)

Testing microscopic atomic structure, chemical bonding, chemical thermodynamics, reaction kinetics, and electrolyte equilibria.

Atomic Structure & Periodic Law

Atomic composition: nucleus (protons, neutrons) and extranuclear electrons; atomic number (Z), mass number (A), isotopes; electron shell arrangement rules (2, 8, 18, 32); structure of the Periodic Table (periods, groups); periodic trends in atomic radius, metallic/non-metallic character, first ionization energy, and electronegativity.

Chemical Bonds & Intermolecular Forces

Ionic bonds, electrostatic attraction between ions, ionic crystal lattices; covalent bonds (polar and nonpolar covalent bonds, coordinate covalent bonds); metallic bonds and free electron model; intermolecular forces (van der Waals forces) and hydrogen bonding, influence on melting and boiling points.

Chemical Reaction Rates & Equilibrium

Reaction rate definition (v = Δc / Δt); factors influencing reaction rates (temperature, concentration, pressure, catalysts); reversible chemical reactions, dynamic chemical equilibrium state; chemical equilibrium constant (K); Le Chatelier's Principle and equilibrium shift predictions.

Theories of Electrolyte Solutions

Strong electrolytes vs. weak electrolytes, ionization equations; ionization equilibrium of weak electrolytes, ionization constant (K_a, K_b); salt hydrolysis principles and acidity/alkalinity of salt solutions; solubility product constant (K_sp) and precipitation dissolution equilibrium.

4. Chemical Experiments and Applications (化学实验与应用)

This module tests practical laboratory competence, gas synthesis protocols, substance purification, and foundational chemical industry operations.

Laboratory Safety & Apparatus Usage

Chemical hazard warning symbols, safety protocols for handling toxic, flammable, and corrosive chemicals; proper operation and calibration of standard glassware (test tubes, beakers, Erlenmeyer flasks, graduated cylinders, burettes, pipettes, separatory funnels, gas-washing bottles).

Preparation & Identification of Common Gases

Laboratory generation reactions, reaction apparatus, drying agents, collection methods (water displacement, upward/downward air displacement), and tail-gas absorption for common laboratory gases: O₂, H₂, CO₂, Cl₂, NH₃.

Methods for Separation & Purification

Physical and chemical separation methods: filtration, evaporation and crystallization, fractional distillation, extraction, liquid-liquid separation with separatory funnels, and gas scrubbing.

Analysis of Industrial Chemical Processes

Basic chemical engineering principles, raw material pretreatment, cyclic utilization, energy conservation, and green chemistry; industrial flowcharts such as the Haber-Bosch ammonia synthesis process (N₂ + 3H₂ ⇌ 2NH₃), contact process for sulfuric acid, and chlor-alkali electrolysis industry.

Official Question Types, Exam Structure & Score Distribution

According to the official CSC Chemistry Examination Syllabus and verified historical past papers, the examination is 100% objective multiple-choice with zero written equations or free-response calculation sections: