IB / AS level / Edexcel K-12 Chemical Bonding Includes- MCQ’s and Theory questions Questions and Marking Scheme Content Tested- Ionic Bond Covalent Bond Coordinate Bond Metallic Bond Hybridization Valence Bond Theory VSEPR theory Resonance Intermolecular Attractions

IB/ AS-A level / Edexcel K-12 Chemistry – Periodic table Worksheet Exam Style Questions and Marking Scheme Section A MCQ’s and Section B Theory questions Contents- Modern Periodic Table Trends and Periodicity Solubility of chlorides Oxidation states Atomic Radii Metallic character Nature of Oxides Ionization Energy Electron Affinity Melting point Chemical Properties in various groups and periods Transition Metals Complex ions and geometry Properties of Transition metals

IB HL / A level / Edexcel Energetics – Free Energy, Born Haber Cycle Includes- MCQ’s and Theory questions Questions and Marking Scheme Content Tested- • Entropy • Enthalpy • Free Energy • Spontaneity • Born Haber Cycle • Enthalpy of Formation for Ionic Lattices • Lattice Energy

IB/ AS level/ Edexcel K-12 Chemistry – Atomic Structure WS Exam Style Questions and Marking Scheme Section A MCQ’s and Section B Theory questions Contents- • Electron, Protons and Neutrons • Mass number • Mass Spectroscopy • Rutherford’s Exp . • Bohr Hydrogen Spectrum • Gas Laws • Ionization Energy • Quantum Mechanical Model of Atom • Electronic Configuration

IB/ AS level / Edexcel K12- Chemistry Chemical Kinetics Worksheet Questions and Marking scheme MCQ’s and Theory Questions Contents- • Activation Energy • Rate • Rate Expression • Rate Law • Integrated Rate Law • Arrhenius Equation • In K vs T • Maxwell Boltzmann Energy Distribution • Activation Energy • Order of a Reaction • Reaction Mechanisms

IB SL / AS level / K-11 Chemistry Acid Bases Practice Sheet Exam Style Questions and Marking Scheme MCQ’s and Theory Questions Contents- Acid and Bases Chemical Properties of Acid Base Indicators pH pOH Ionic Product Arrhenius Concept of Acid Base Bronsted Lowry Concept (Proton Concept) Titration Concentration of H+ and OH-

Entire set of gas laws with illustrations , examples and some practice exam style questions on all laws. Contents include- 1 Boyle’s Law 2 Graphs for Boyle Law 3 Charles Law 4 Graph for Charles 5 Avogadro Law 6 Graph for Avogadro Law 7 Law of Pressure 8 Graphs for Law of Pressure 9 Ideal gas equation 10 Exam style questions

IB /AS level / Edexcel K-11 Chemistry – Organic Chemistry Practice Sheet Exam Style Questions and Marking Scheme MCQ’s and Theory Questions Content- Alkanes Alkenes Functional Group Homologous Series Isomerism Resonance Nucleophilic Reaction Electrophilic Reaction Free Radical Addition Polymers Alcohols Aldehydes Acids Esters Organic Chemical Reactions

IGCSE / GCSE / OCR Biology Heart Circulation Practice Sheet Exam Style Questions Contents Heart Double Circulation Blood Blood Cells Arteries Veins

IGCSE / GCSE / OCR Chemistry Practice Exercise – Balancing and Ionic Equations Contents Formulae, Equations Balanced equations Ionic equations Word Equations Precipitation (ionic equation) Redox (ionic equation)

IGCSE / GCSE / OCR Biology Practice Sheet Homeostasis Exam Style Questions and Marking Scheme Contents  Skin  Liver  Thermo-regulation ��� Metabolism of carbohydrate  Homeostasis  Urea  Carbon Dioxide  Kidney  Excretion

IB HL / A level / Edexcel Energetics – Free Energy, Born Haber Cycle Includes- MCQ’s and Theory questions Questions and Marking Scheme Content Tested- • Entropy • Enthalpy • Free Energy • Spontaneity • Born Haber Cycle • Enthalpy of Formation for Ionic Lattices • Lattice Energy

The resource contains all the required notes for IBDP HL and SL , A level Chemistry for Chemical Kinetics (Rate of the Reaction) Chemical Kinetics Expression of rates. Stoichiometric relationships of rates of different substances in a reaction. Determination of reaction orders, rate laws, and rate constant by method of initial rate. Determination of rate laws by graphical or integration method. Determination of half-lives Determination of activation energy Elementary steps and reaction mechanism Effect of catalysts

Contents Tested Heat Capacity Specific Heat Heat transfer Calorimetry Temperature change Kinetic energy Thermal Capacity of a Body Surface Heat capacity Heat of Fusion Heat of Vaporization

Performance task - Hess Law This is an engaging practice task focused on Hess’s Law. Master the art of determining enthalpy changes for chemical reactions using indirect methods. Through a series of carefully designed exercises, you’ll piece together reaction pathways and harness the power of stoichiometry to predict overall energy changes. Perfect for both beginners and those looking to refresh their knowledge,or exam practice or just a quick Formative assessment.

The document clearly explains the concepts of reduction and oxidation of elements in chemical reactions by different examples. Also explains the difference in application of three main concepts of redox. Contents include- -Electron concept of Redox (Example reactions explained) - Oxygen Hydrogen concept of Redox (Examples reactions explained) - Oxidation state concept of Redox (Examples reactions explained)

The resource contains the important instruments and techniques as per IGCSE chemistry. It clearly explains separation techniques and their uses (commonly asked in IGCSE exams theory and ATP papers) along with other objectives such as measurements and criteria for purity. Topics Covered- • Measurement • Pure Substances • Criteria for Purity • Difference between compounds and mixtures • Homogenous mixtures • Heterogenous mixtures • Separation Techniques • Decantation • Filteration • Sublimation • Chromatography • Distillation • Fractional distillation • Crystallisation • Centrifugation

The worksheet can be used to test understanding of IGCSE concepts of periodic properties such as- -Arrangement of elements in periodic table - Groups and periods in periodic table -Properties of group I, II, transition metals,halogens and inert gases.