Summary

• Description:

  The MS Word document comprises Starehe Girls’ Centre Chemistry Paper 2 2025 Mock Exam with Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

  The exam paper contains 7 structured questions and is marked out of a total of 80 marks. It should be completed by learners within a duration of 2 hours.

  The paper is intended for Form 4 learners and assesses chemical reasoning, interpretation of information, and calculation skills in line with the KCSE Chemistry syllabus.

  It covers the following topics:

  • Periodic table trends, families, bonding, and properties of elements
  • Organic chemistry, including naming of compounds and detergents
  • Hydrocarbons and preparation reactions
  • Laboratory apparatus, Bunsen burner flames, and mixtures in air
  • Industrial chemistry, including extraction of sulphur and the Contact Process
  • Metals and extraction of zinc, including pollution effects and uses of zinc
  • Electrolysis, salt bridges, electrochemical cells, and e.m.f calculations
  • Faraday’s laws and mass deposition calculations
  • Preparation of salts and qualitative product identification
  • Acid salts, thermal decomposition reactions, and uses of gases
  • Fuel selection considerations

  The questions are structured and calculation-based, requiring learners to show clear working, write balanced equations, interpret industrial processes, and apply chemistry concepts accurately.

• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  CHEMISTRY

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