CHEMISTRY practice

The CHEMISTRY syllabus

Every unit, chapter and section. Open one to practise its questions or download its papers.

1. UnitPrinciples of Chemistry991 practice questions+

   Principles of Chemistry: all unit practice →

   1. States of Matter102 practice questions
      • The arrangement of the particles19 Q
      • Interconversions between the three states of matter19 Q
      • Diffusion in gases19 Q
      • Measuring solubility [chemistry only]18 Q
      • Solubility curves19 Q
   2. Elements, Compounds and Mixtures69 practice questions
      • Simple differences between mixtures and compounds19 Q
      • Separation of mixtures19 Q
      • Paper chromatography21 Q
   3. Atomic Structure108 practice questions
      • Atoms and molecules20 Q
      • Atomic number and mass number19 Q
      • Relative atomic mass19 Q
      • Counting the number of electrons in an atom21 Q
      • The periodic table20 Q
   4. The Periodic Table103 practice questions
      • The arrangement of the electrons in an atom19 Q
      • Drawing diagrams of electronic configurations19 Q
      • Electronic configurations and the periodic table19 Q
      • Metals and non-metals in the periodic table18 Q
      • Differences between the properties of metals and non-metals19 Q
   5. Chemical Formulae, Equations and Calculations Part 119 practice questions
   6. Chemical Formulae, Equations and Calculations Part 2144 practice questions
      • Calculations involving gas volumes19 Q
      • Calculating the volume of a certain number of moles19 Q
      • Using the molar volume in calculations with chemical equations19 Q
      • Concentrations of solutions19 Q
      • Calculations with equations involving solutions19 Q
      • The standard calculation19 Q
      • Reversing the calculations20 Q
   7. Ionic Bonding143 practice questions
      • Ionic bonding in magnesium oxide19 Q
      • Other examples of ionic bonding19 Q
      • Calcium chloride19 Q
      • Formulae for ionic compounds18 Q
      • Giant ionic structures19 Q
      • The physical properties of ionic substances19 Q
      • The electrical conductivity of ionic substances19 Q
   8. Covalent Bonding68 practice questions
      • What is a covalent bond?19 Q
      • Simple molecular structures19 Q
      • Giant covalent structures19 Q
   9. Metallic Bonding19 practice questions
   10. Electrolysis198 practice questions
       • Why things conduct electricity17 Q
       • Passing electricity through compounds: electrolysis20 Q
       • The electrolysis of molten compounds19 Q
       • Electrolysis and redox19 Q
       • The electrolysis of other molten substances19 Q
       • The electrolysis of aqueous solutions18 Q
       • The electrolysis of sodium chloride solution19 Q
       • The electrolysis of copper(ii) sulfate solution using inert electrodes18 Q
       • The electrolysis of some other solutions using inert electrodes19 Q
       • What would happen with non-electrolytes?19 Q
2. UnitInorganic Chemistry869 practice questions+

   Inorganic Chemistry: all unit practice →

   1. The Alkali Metals85 practice questions
      • Rubidium and caesium19 Q
      • Explaining the increase in reactivity19 Q
      • Compounds of the alkali metals19 Q
      • Predicting the properties of francium19 Q
   2. The Halogens86 practice questions
      • Reactions of the halogens19 Q
      • Displacement reactions involving the halogens19 Q
      • Displacement reactions as redox reactions19 Q
      • Explaining the trend in the reactivity of the halogens19 Q
   3. Gases in the Atmosphere86 practice questions
      • Showing that air contains about one-fifth oxygen19 Q
      • The combustion of elements in oxygen18 Q
      • The properties of oxides19 Q
      • Carbon dioxide and global warming: the greenhouse effect19 Q
   4. Reactivity Series163 practice questions
      • Displacement reactions involving metal oxides20 Q
      • Oxidation and reduction19 Q
      • Displacement reactions involving solutions of salts19 Q
      • Reactions of metals with water18 Q
      • Reactions of metals with dilute acids19 Q
      • Making predictions using the reactivity series19 Q
      • Preventing rusting by galvanising21 Q
      • Preventing rusting by using sacrificial protection18 Q
   5. Extraction and Uses of Metals128 practice questions
      • Extracting metals from their ores19 Q
      • Metals below carbon in the reactivity series19 Q
      • Metals above carbon in the reactivity series18 Q
      • Properties and uses of some metals19 Q
      • Uses of aluminium19 Q
      • Properties and uses of different kinds of steel20 Q
   6. Acids, Alkalis and Titrations83 practice questions
      • pH and indicators19 Q
      • Acid–alkali indicators19 Q
      • Other alkaline solutions18 Q
      • Titration19 Q
   7. Acids, Bases and Salt Preparations156 practice questions
      • Reactions of acids18 Q
      • Reacting acids with bases19 Q
      • Reacting acids with carbonates19 Q
      • Salt preparations19 Q
      • Making soluble salts (except sodium, potassium and ammonium salts)19 Q
      • Making sodium, potassium and ammonium salts18 Q
      • Making insoluble salts19 Q
      • Theories of acids and bases19 Q
   8. Chemical Tests68 practice questions
      • Ammonia, NH3 / The test for ammonia gas20 Q
      • Testing for carbonates (CO3^2-)20 Q
      • Testing for chlorides (Cl^-), bromides (Br^-) and iodides (I^-)21 Q
3. UnitPhysical Chemistry442 practice questions+

   Physical Chemistry: all unit practice →

   1. Energetics117 practice questions
      • Exothermic reactions19 Q
      • Endothermic reactions19 Q
      • Measuring enthalpy changes of reactions19 Q
      • Calorimetry experiments for determining the enthalpy changes of reactions18 Q
      • Why do reactions either give out or absorb heat?19 Q
      • Calculation of enthalpy changes of reaction using bond energies19 Q
   2. Rates of Reaction164 practice questions
      • Experiments to measure the rate of reaction19 Q
      • Explaining what's happening19 Q
      • Changing the surface area of the reactants19 Q
      • Changing the concentration of the reactants19 Q
      • Changing the pressure on the reaction19 Q
      • What are catalysts?19 Q
      • How does a catalyst work?20 Q
      • Catalysts in industry19 Q
   3. Reversible Reactions and Equilibria144 practice questions
      • Reversibility and dynamic equilibria19 Q
      • Reversible reactions in a sealed container18 Q
      • The position of equilibrium20 Q
      • Changing the pressure19 Q
      • Changing the temperature19 Q
      • Adding a catalyst19 Q
      • The effect of concentration19 Q
4. UnitOrganic Chemistry785 practice questions+

   Organic Chemistry: all unit practice →

   1. Introduction to Organic Chemistry185 practice questions
      • Types of formula for organic molecules19 Q
      • General formulae18 Q
      • Displayed formulae19 Q
      • Naming organic compounds19 Q
      • Coding for the type of compound19 Q
      • Coding for branched chains19 Q
      • Structural isomerism in the alkanes19 Q
      • A quick introductory look at the alcohols20 Q
      • Some chemical reactions of organic compounds21 Q
   2. Crude Oil106 practice questions
      • The origin of crude oil19 Q
      • How the physical properties of hydrocarbons change with molecule size19 Q
      • As fuels19 Q
      • Gasoline (petrol)19 Q
      • Kerosene19 Q
   3. Alkanes18 practice questions
   4. Alkenes106 practice questions
      • Unsaturated hydrocarbons19 Q
      • Physical properties19 Q
      • Chemical reactions of the alkenes19 Q
      • The test for unsaturated compounds19 Q
      • Other important addition reactions of alkenes19 Q
   5. Alcohols130 practice questions
      • Drawing and naming the alcohols21 Q
      • Ethanol burns in air19 Q
      • Ethanol can be oxidised by heating with potassium dichromate(VI) in dilute sulfuric acid21 Q
      • Making ethanol by fermentation19 Q
      • Making ethanol by the hydration of ethene19 Q
      • Comparing the two methods of producing ethanol20 Q
   6. Carboxylic Acids48 practice questions
      • Drawing and naming the carboxylic acids19 Q
      • Reaction with metals18 Q
   7. Esters68 practice questions
      • Drawing and naming esters19 Q
      • Uses of esters19 Q
      • Practical: making and testing the smell of some esters in the lab19 Q
   8. Synthetic Polymers107 practice questions
      • Addition polymerisation19 Q
      • How to deduce the polymerisation reaction for any alkene19 Q
      • Disposal of addition polymers21 Q
      • Making a polyester19 Q
      • Biodegradable polyesters18 Q