1. Periodic table trends and elemental identification (ionisation energy, ionic radii, molecular shape, acidic/basic oxides), structure–property relation of chlorides (NaCl, MgCl₂, SiCl₄), bonding explanation using conductivity and melting point 2. Catalysed decomposition of hydrogen peroxide, gas volume–time graph, rate calculation, molar volume at RTP, electrode potentials for redox half-equations, ligand exchange equilibrium with Co²⁺ complexes, effect of temperature on equilibrium (Le Chatelier’s principle) 3. Bidentate ligand optical isomerism of Fe³⁺ with ethanedioate, redox titration of ethanedioic acid with Ce⁴⁺ (colour change, endpoint, titration calculation, percentage by mass from data) 4. Oxidation state determination in Pt complexes, ligand substitution mechanism forming cis-platin, functional groups in paracetamol, multistep organic synthesis with percentage yield and purification, identification of intermediates 5. Enthalpy of neutralisation of succinic acid with NaOH (calorimetry calculation using q = mcΔT), esterification equilibrium with ethanol, equilibrium constant expression in moles, skeletal formula drawing, analytical method for acid quantification