Summary

• Description:

  The MS Word document comprises Nakuru North Joint Mock 2024 Chemistry Paper 2 Exam with Answers and Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

  It is a KCSE Chemistry Paper 2 (233/2) Theory Joint Mock Examination that was administered in July/August 2024 for schools in Nakuru North Sub-County.

  • Duration: 2 Hours
  • Total Marks: 80
  • Number of Questions: 7

  The paper required candidates to answer all questions in the spaces provided in the question paper. Candidates were allowed to use mathematical tables and silent electronic calculators where necessary.

  It covered the following topics:

  • Organic reaction schemes involving hydrocarbons, functional groups, and reaction pathways
  • Structural formulae and identification of organic reaction products
  • Types of organic reactions and reaction mechanisms
  • Hess’s Law and thermochemical cycles involving heats of formation and combustion
  • Energy level diagrams and enthalpy changes in chemical reactions
  • Hydration energy and lattice energy in ionic compounds
  • Heat value of fuels and factors influencing fuel choice for domestic heating
  • Extraction and purification of sulphur using the Frasch process
  • Stoichiometric calculations involving sulphur formation from hydrogen sulphide and sulphur dioxide
  • Qualitative analysis involving formation of precipitates and reactions with acids
  • Periodic trends including atomic number, melting point, and chemical reactivity
  • Bonding and electron arrangement using dot-and-cross diagrams
  • Reactivity of metals and reactions with water
  • Methods of separating mixtures of sulphates
  • Extraction of iron from haematite using the blast furnace
  • Properties and separation of slag and molten iron during smelting
  • Steel production and reduction of carbon content in iron
  • Environmental effects of waste gases from industrial processes
  • Industrial manufacture of ethanol by direct hydration of ethene
  • Factors affecting equilibrium yield such as pressure
  • Rates of chemical reactions and graphical interpretation of reaction progress
  • Factors affecting rate of reaction such as temperature and surface area
  • Electrochemical series and standard electrode potentials
  • Identification of oxidizing agents and calculation of electromotive force (EMF)
  • Electrolysis of copper(II) sulphate using copper electrodes
  • Faraday calculations involving electric current and mass changes during electrolysis
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  CHEMISTRY

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