WBCHSE HS Chemistry study plan

Draw and fill orbital diagrams for the first 30 elements and derive their electron configurations using the Aufbau principle, Hund's rule and the (n+l) rule without notes

Predict hybridisation, geometry and bond angle for at least 15 molecules and ions (BeCl2, BF3, CH4, NH3, H2O, PCl5, SF6, XeF4, XeF6, NO2-, CO3^2-) using VSEPR and valence bond theory

Compare sigma and pi bonding, bond order and magnetic behaviour by writing molecular orbital diagrams for O2, O2-, N2, NO and calculating bond order from them

Explain Fajans' rules, polarisation and the diagonal relationship between Li-Mg and Be-Al with two chemical equations for each pair

Recite the group trends in atomic radius, ionisation enthalpy, electron gain enthalpy and electronegativity across periods 2 and 3 and state the anomalous cases (N, O, F, Ga) with reasons

Write balanced equations for the preparation, oxidising behaviour and thermal decomposition of the oxoacids of chlorine, sulphur and phosphorus, including the oxidation state of the central atom in each

Describe the laboratory and industrial preparation of ammonia, nitric acid, sulphuric acid and sodium carbonate with the conditions and the key equilibrium steps named

Distinguish the halogens and interhalogen compounds by state, colour, oxidising strength and hydrolysis products, giving one equation per compound

Explain the inert-pair effect and allotropy of carbon, phosphorus and sulphur with structural reasoning

Predict the products of reactions of XeF2, XeF4 and XeF6 with water and with alkali, writing balanced equations

Derive and apply the ideal gas equation, Dalton's law, Graham's law and the van der Waals equation to numerical problems involving partial pressures and compressibility factor Z

State and apply the first law of thermodynamics to compute delta U, delta H, q and w for isothermal reversible and irreversible expansion of an ideal gas

Calculate enthalpy of reaction from bond enthalpies, enthalpies of formation and Hess's law, and distinguish extensive from intensive state functions

State the second and third laws, compute entropy change and Gibbs free energy change, and predict spontaneity at different temperatures from the sign of delta H and delta S

Apply Le Chatelier's principle to predict the shift in at least six named equilibria when pressure, temperature or concentration is changed

Calculate pH, pOH and degree of dissociation for weak acids and bases using Ka, Kb and Ostwald's dilution law, including the common-ion effect

Explain buffer action quantitatively with the Henderson-Hasselbalch equation and compute the pH change on adding strong acid to an acetate buffer

Write solubility product expressions and solve for molar solubility in the presence of a common ion and predict precipitation from ionic product versus Ksp

Balance redox equations in acidic and alkaline media by the ion-electron method for at least eight reactions

Define molality, molarity, mole fraction and ppm, and convert between them for a given solution density

State Raoult's law, derive the relative lowering of vapour pressure and apply colligative relations for elevation of boiling point, depression of freezing point and osmotic pressure to find molar mass