Summary

• Description:

  The MS Word document comprises THE G8 Chemistry Paper 1 2026 Pre-Mock Exam with Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

  It was a KCSE Chemistry Paper 1 theory examination assessing candidates' mastery of core chemistry concepts, calculations, laboratory principles, environmental chemistry, electrochemistry, organic chemistry, gas laws, and qualitative analysis. This revision paper with answers and marking scheme is ideal for KCSE preparation and PDF download.

  • Month Administered: June 2026
  • Duration: 2 Hours
  • Total Marks: 80 Marks
  • Number of Questions: 27 Questions (1–27)
  • Structure: One compulsory section containing 27 structured short-answer questions.

  It covers the following topics:

  • Section I
    • Qualitative analysis of cations and anions
    • Environmental chemistry and chlorofluorocarbons
    • Solubility and crystallization calculations
    • Periodic table and properties of oxides
    • Hydrogen preparation and properties
    • Gas laws and Graham's law of diffusion
    • Chemical equilibrium and Le Chatelier's principle
    • Bond energies and enthalpy calculations
    • Hydrogen chloride preparation and chemical properties
    • Structure and bonding
    • Electronic configuration and periodicity
    • Stoichiometry and mole calculations
    • Thermal decomposition of nitrates and carbonates
    • Preparation of insoluble salts
    • Boiling point and purity of substances
    • Extraction of vegetable oils
    • Gas volume calculations and Gay-Lussac's law
    • Industrial manufacture of ammonia and nitric(V) acid
    • Properties and uses of concentrated sulphuric(VI) acid
    • Laboratory apparatus and experimental techniques
    • Reaction of ammonia with oxygen
    • Laboratory preparation of sulphur(IV) oxide
    • Hardness of water
    • Carbon oxides and their applications
    • Boyle's law calculations
    • Bunsen burner flame structure
    • Electrochemical cells and electrode potentials
    • Hydrocarbons and organic reactions
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  CHEMISTRY
• Posted By:

  Caleb_Peter

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